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4ee9c684 | 1 | /* Backend function setup |
f1717362 | 2 | Copyright (C) 2002-2016 Free Software Foundation, Inc. |
4ee9c684 | 3 | Contributed by Paul Brook |
4 | ||
c84b470d | 5 | This file is part of GCC. |
4ee9c684 | 6 | |
c84b470d | 7 | GCC is free software; you can redistribute it and/or modify it under |
8 | the terms of the GNU General Public License as published by the Free | |
bdabe786 | 9 | Software Foundation; either version 3, or (at your option) any later |
c84b470d | 10 | version. |
4ee9c684 | 11 | |
c84b470d | 12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
4ee9c684 | 16 | |
17 | You should have received a copy of the GNU General Public License | |
bdabe786 | 18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
4ee9c684 | 20 | |
21 | /* trans-decl.c -- Handling of backend function and variable decls, etc */ | |
22 | ||
23 | #include "config.h" | |
24 | #include "system.h" | |
25 | #include "coretypes.h" | |
4cba6f60 | 26 | #include "target.h" |
27 | #include "function.h" | |
28 | #include "tree.h" | |
dc8078a3 | 29 | #include "gfortran.h" |
4cba6f60 | 30 | #include "gimple-expr.h" /* For create_tmp_var_raw. */ |
31 | #include "trans.h" | |
32 | #include "stringpool.h" | |
33 | #include "cgraph.h" | |
b20a8bb4 | 34 | #include "fold-const.h" |
9ed99284 | 35 | #include "stor-layout.h" |
36 | #include "varasm.h" | |
37 | #include "attribs.h" | |
4ee9c684 | 38 | #include "tree-dump.h" |
7cbc820e | 39 | #include "toplev.h" /* For announce_function. */ |
df4d540f | 40 | #include "debug.h" |
126387b5 | 41 | #include "constructor.h" |
4ee9c684 | 42 | #include "trans-types.h" |
43 | #include "trans-array.h" | |
44 | #include "trans-const.h" | |
45 | /* Only for gfc_trans_code. Shouldn't need to include this. */ | |
46 | #include "trans-stmt.h" | |
7c1a9598 | 47 | #include "gomp-constants.h" |
1ec957b0 | 48 | #include "gimplify.h" |
4ee9c684 | 49 | |
50 | #define MAX_LABEL_VALUE 99999 | |
51 | ||
52 | ||
53 | /* Holds the result of the function if no result variable specified. */ | |
54 | ||
55 | static GTY(()) tree current_fake_result_decl; | |
c750cc52 | 56 | static GTY(()) tree parent_fake_result_decl; |
4ee9c684 | 57 | |
4ee9c684 | 58 | |
59 | /* Holds the variable DECLs for the current function. */ | |
60 | ||
d4163395 | 61 | static GTY(()) tree saved_function_decls; |
62 | static GTY(()) tree saved_parent_function_decls; | |
4ee9c684 | 63 | |
431205b7 | 64 | static hash_set<tree> *nonlocal_dummy_decl_pset; |
9579733e | 65 | static GTY(()) tree nonlocal_dummy_decls; |
4ee9c684 | 66 | |
6a7084d7 | 67 | /* Holds the variable DECLs that are locals. */ |
68 | ||
69 | static GTY(()) tree saved_local_decls; | |
70 | ||
4ee9c684 | 71 | /* The namespace of the module we're currently generating. Only used while |
72 | outputting decls for module variables. Do not rely on this being set. */ | |
73 | ||
74 | static gfc_namespace *module_namespace; | |
75 | ||
89ac8ba1 | 76 | /* The currently processed procedure symbol. */ |
77 | static gfc_symbol* current_procedure_symbol = NULL; | |
78 | ||
3adf245a | 79 | /* The currently processed module. */ |
80 | static struct module_htab_entry *cur_module; | |
4ee9c684 | 81 | |
a961ca30 | 82 | /* With -fcoarray=lib: For generating the registering call |
83 | of static coarrays. */ | |
84 | static bool has_coarray_vars; | |
85 | static stmtblock_t caf_init_block; | |
86 | ||
87 | ||
4ee9c684 | 88 | /* List of static constructor functions. */ |
89 | ||
90 | tree gfc_static_ctors; | |
91 | ||
92 | ||
d566c3e0 | 93 | /* Whether we've seen a symbol from an IEEE module in the namespace. */ |
94 | static int seen_ieee_symbol; | |
95 | ||
4ee9c684 | 96 | /* Function declarations for builtin library functions. */ |
97 | ||
4ee9c684 | 98 | tree gfor_fndecl_pause_numeric; |
99 | tree gfor_fndecl_pause_string; | |
100 | tree gfor_fndecl_stop_numeric; | |
dff2ea5f | 101 | tree gfor_fndecl_stop_numeric_f08; |
4ee9c684 | 102 | tree gfor_fndecl_stop_string; |
070cc790 | 103 | tree gfor_fndecl_error_stop_numeric; |
c6cd3066 | 104 | tree gfor_fndecl_error_stop_string; |
4ee9c684 | 105 | tree gfor_fndecl_runtime_error; |
50ad5fa2 | 106 | tree gfor_fndecl_runtime_error_at; |
da6ffc6d | 107 | tree gfor_fndecl_runtime_warning_at; |
9915365e | 108 | tree gfor_fndecl_os_error; |
50ad5fa2 | 109 | tree gfor_fndecl_generate_error; |
7257a5d2 | 110 | tree gfor_fndecl_set_args; |
8c84a5de | 111 | tree gfor_fndecl_set_fpe; |
56c7c2d7 | 112 | tree gfor_fndecl_set_options; |
15774a8b | 113 | tree gfor_fndecl_set_convert; |
f23886ab | 114 | tree gfor_fndecl_set_record_marker; |
bbaaa7b1 | 115 | tree gfor_fndecl_set_max_subrecord_length; |
b902b078 | 116 | tree gfor_fndecl_ctime; |
117 | tree gfor_fndecl_fdate; | |
dbc97b88 | 118 | tree gfor_fndecl_ttynam; |
4ee9c684 | 119 | tree gfor_fndecl_in_pack; |
120 | tree gfor_fndecl_in_unpack; | |
121 | tree gfor_fndecl_associated; | |
72ce5390 | 122 | tree gfor_fndecl_system_clock4; |
123 | tree gfor_fndecl_system_clock8; | |
d566c3e0 | 124 | tree gfor_fndecl_ieee_procedure_entry; |
125 | tree gfor_fndecl_ieee_procedure_exit; | |
4ee9c684 | 126 | |
127 | ||
70b5944a | 128 | /* Coarray run-time library function decls. */ |
129 | tree gfor_fndecl_caf_init; | |
130 | tree gfor_fndecl_caf_finalize; | |
d44f2f7c | 131 | tree gfor_fndecl_caf_this_image; |
132 | tree gfor_fndecl_caf_num_images; | |
a961ca30 | 133 | tree gfor_fndecl_caf_register; |
d0d776fb | 134 | tree gfor_fndecl_caf_deregister; |
5f4a118e | 135 | tree gfor_fndecl_caf_get; |
136 | tree gfor_fndecl_caf_send; | |
137 | tree gfor_fndecl_caf_sendget; | |
70b5944a | 138 | tree gfor_fndecl_caf_sync_all; |
71cf3ae6 | 139 | tree gfor_fndecl_caf_sync_memory; |
70b5944a | 140 | tree gfor_fndecl_caf_sync_images; |
ba4d9b7e | 141 | tree gfor_fndecl_caf_stop_str; |
142 | tree gfor_fndecl_caf_stop_numeric; | |
70b5944a | 143 | tree gfor_fndecl_caf_error_stop; |
144 | tree gfor_fndecl_caf_error_stop_str; | |
97b9ac34 | 145 | tree gfor_fndecl_caf_atomic_def; |
146 | tree gfor_fndecl_caf_atomic_ref; | |
147 | tree gfor_fndecl_caf_atomic_cas; | |
148 | tree gfor_fndecl_caf_atomic_op; | |
498b946e | 149 | tree gfor_fndecl_caf_lock; |
150 | tree gfor_fndecl_caf_unlock; | |
bd47f0bc | 151 | tree gfor_fndecl_caf_event_post; |
152 | tree gfor_fndecl_caf_event_wait; | |
153 | tree gfor_fndecl_caf_event_query; | |
52306a18 | 154 | tree gfor_fndecl_co_broadcast; |
79ed4a8e | 155 | tree gfor_fndecl_co_max; |
156 | tree gfor_fndecl_co_min; | |
e39efcef | 157 | tree gfor_fndecl_co_reduce; |
79ed4a8e | 158 | tree gfor_fndecl_co_sum; |
70b5944a | 159 | |
70b5944a | 160 | |
4ee9c684 | 161 | /* Math functions. Many other math functions are handled in |
162 | trans-intrinsic.c. */ | |
163 | ||
920e54ef | 164 | gfc_powdecl_list gfor_fndecl_math_powi[4][3]; |
4ee9c684 | 165 | tree gfor_fndecl_math_ishftc4; |
166 | tree gfor_fndecl_math_ishftc8; | |
920e54ef | 167 | tree gfor_fndecl_math_ishftc16; |
4ee9c684 | 168 | |
169 | ||
170 | /* String functions. */ | |
171 | ||
4ee9c684 | 172 | tree gfor_fndecl_compare_string; |
173 | tree gfor_fndecl_concat_string; | |
174 | tree gfor_fndecl_string_len_trim; | |
175 | tree gfor_fndecl_string_index; | |
176 | tree gfor_fndecl_string_scan; | |
177 | tree gfor_fndecl_string_verify; | |
178 | tree gfor_fndecl_string_trim; | |
5fcc6ec2 | 179 | tree gfor_fndecl_string_minmax; |
4ee9c684 | 180 | tree gfor_fndecl_adjustl; |
181 | tree gfor_fndecl_adjustr; | |
b44437b9 | 182 | tree gfor_fndecl_select_string; |
40b806de | 183 | tree gfor_fndecl_compare_string_char4; |
184 | tree gfor_fndecl_concat_string_char4; | |
185 | tree gfor_fndecl_string_len_trim_char4; | |
186 | tree gfor_fndecl_string_index_char4; | |
187 | tree gfor_fndecl_string_scan_char4; | |
188 | tree gfor_fndecl_string_verify_char4; | |
189 | tree gfor_fndecl_string_trim_char4; | |
190 | tree gfor_fndecl_string_minmax_char4; | |
191 | tree gfor_fndecl_adjustl_char4; | |
192 | tree gfor_fndecl_adjustr_char4; | |
b44437b9 | 193 | tree gfor_fndecl_select_string_char4; |
194 | ||
195 | ||
196 | /* Conversion between character kinds. */ | |
197 | tree gfor_fndecl_convert_char1_to_char4; | |
198 | tree gfor_fndecl_convert_char4_to_char1; | |
4ee9c684 | 199 | |
200 | ||
201 | /* Other misc. runtime library functions. */ | |
4ee9c684 | 202 | tree gfor_fndecl_size0; |
203 | tree gfor_fndecl_size1; | |
9b057c29 | 204 | tree gfor_fndecl_iargc; |
4ee9c684 | 205 | |
59e2a584 | 206 | /* Intrinsic functions implemented in Fortran. */ |
207 | tree gfor_fndecl_sc_kind; | |
4ee9c684 | 208 | tree gfor_fndecl_si_kind; |
209 | tree gfor_fndecl_sr_kind; | |
210 | ||
4e8e57b0 | 211 | /* BLAS gemm functions. */ |
212 | tree gfor_fndecl_sgemm; | |
213 | tree gfor_fndecl_dgemm; | |
214 | tree gfor_fndecl_cgemm; | |
215 | tree gfor_fndecl_zgemm; | |
216 | ||
4ee9c684 | 217 | |
218 | static void | |
219 | gfc_add_decl_to_parent_function (tree decl) | |
220 | { | |
22d678e8 | 221 | gcc_assert (decl); |
4ee9c684 | 222 | DECL_CONTEXT (decl) = DECL_CONTEXT (current_function_decl); |
223 | DECL_NONLOCAL (decl) = 1; | |
1767a056 | 224 | DECL_CHAIN (decl) = saved_parent_function_decls; |
4ee9c684 | 225 | saved_parent_function_decls = decl; |
226 | } | |
227 | ||
228 | void | |
229 | gfc_add_decl_to_function (tree decl) | |
230 | { | |
22d678e8 | 231 | gcc_assert (decl); |
4ee9c684 | 232 | TREE_USED (decl) = 1; |
233 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 234 | DECL_CHAIN (decl) = saved_function_decls; |
4ee9c684 | 235 | saved_function_decls = decl; |
236 | } | |
237 | ||
6a7084d7 | 238 | static void |
239 | add_decl_as_local (tree decl) | |
240 | { | |
241 | gcc_assert (decl); | |
242 | TREE_USED (decl) = 1; | |
243 | DECL_CONTEXT (decl) = current_function_decl; | |
1767a056 | 244 | DECL_CHAIN (decl) = saved_local_decls; |
6a7084d7 | 245 | saved_local_decls = decl; |
246 | } | |
247 | ||
4ee9c684 | 248 | |
b797d6d3 | 249 | /* Build a backend label declaration. Set TREE_USED for named labels. |
250 | The context of the label is always the current_function_decl. All | |
251 | labels are marked artificial. */ | |
4ee9c684 | 252 | |
253 | tree | |
254 | gfc_build_label_decl (tree label_id) | |
255 | { | |
256 | /* 2^32 temporaries should be enough. */ | |
257 | static unsigned int tmp_num = 1; | |
258 | tree label_decl; | |
259 | char *label_name; | |
260 | ||
261 | if (label_id == NULL_TREE) | |
262 | { | |
263 | /* Build an internal label name. */ | |
264 | ASM_FORMAT_PRIVATE_NAME (label_name, "L", tmp_num++); | |
265 | label_id = get_identifier (label_name); | |
266 | } | |
267 | else | |
268 | label_name = NULL; | |
269 | ||
270 | /* Build the LABEL_DECL node. Labels have no type. */ | |
e60a6f7b | 271 | label_decl = build_decl (input_location, |
272 | LABEL_DECL, label_id, void_type_node); | |
4ee9c684 | 273 | DECL_CONTEXT (label_decl) = current_function_decl; |
274 | DECL_MODE (label_decl) = VOIDmode; | |
275 | ||
b797d6d3 | 276 | /* We always define the label as used, even if the original source |
277 | file never references the label. We don't want all kinds of | |
278 | spurious warnings for old-style Fortran code with too many | |
279 | labels. */ | |
280 | TREE_USED (label_decl) = 1; | |
4ee9c684 | 281 | |
b797d6d3 | 282 | DECL_ARTIFICIAL (label_decl) = 1; |
4ee9c684 | 283 | return label_decl; |
284 | } | |
285 | ||
286 | ||
b31f705b | 287 | /* Set the backend source location of a decl. */ |
288 | ||
289 | void | |
290 | gfc_set_decl_location (tree decl, locus * loc) | |
291 | { | |
b31f705b | 292 | DECL_SOURCE_LOCATION (decl) = loc->lb->location; |
b31f705b | 293 | } |
294 | ||
295 | ||
4ee9c684 | 296 | /* Return the backend label declaration for a given label structure, |
297 | or create it if it doesn't exist yet. */ | |
298 | ||
299 | tree | |
300 | gfc_get_label_decl (gfc_st_label * lp) | |
301 | { | |
4ee9c684 | 302 | if (lp->backend_decl) |
303 | return lp->backend_decl; | |
304 | else | |
305 | { | |
306 | char label_name[GFC_MAX_SYMBOL_LEN + 1]; | |
307 | tree label_decl; | |
308 | ||
309 | /* Validate the label declaration from the front end. */ | |
22d678e8 | 310 | gcc_assert (lp != NULL && lp->value <= MAX_LABEL_VALUE); |
4ee9c684 | 311 | |
312 | /* Build a mangled name for the label. */ | |
313 | sprintf (label_name, "__label_%.6d", lp->value); | |
314 | ||
315 | /* Build the LABEL_DECL node. */ | |
316 | label_decl = gfc_build_label_decl (get_identifier (label_name)); | |
317 | ||
318 | /* Tell the debugger where the label came from. */ | |
f888a3fb | 319 | if (lp->value <= MAX_LABEL_VALUE) /* An internal label. */ |
b31f705b | 320 | gfc_set_decl_location (label_decl, &lp->where); |
4ee9c684 | 321 | else |
322 | DECL_ARTIFICIAL (label_decl) = 1; | |
323 | ||
324 | /* Store the label in the label list and return the LABEL_DECL. */ | |
325 | lp->backend_decl = label_decl; | |
326 | return label_decl; | |
327 | } | |
328 | } | |
329 | ||
330 | ||
331 | /* Convert a gfc_symbol to an identifier of the same name. */ | |
332 | ||
333 | static tree | |
334 | gfc_sym_identifier (gfc_symbol * sym) | |
335 | { | |
0509d0ee | 336 | if (sym->attr.is_main_program && strcmp (sym->name, "main") == 0) |
337 | return (get_identifier ("MAIN__")); | |
338 | else | |
339 | return (get_identifier (sym->name)); | |
4ee9c684 | 340 | } |
341 | ||
342 | ||
343 | /* Construct mangled name from symbol name. */ | |
344 | ||
345 | static tree | |
346 | gfc_sym_mangled_identifier (gfc_symbol * sym) | |
347 | { | |
348 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
349 | ||
c5d33754 | 350 | /* Prevent the mangling of identifiers that have an assigned |
351 | binding label (mainly those that are bind(c)). */ | |
7b2060ba | 352 | if (sym->attr.is_bind_c == 1 && sym->binding_label) |
353 | return get_identifier (sym->binding_label); | |
a90fe829 | 354 | |
4f0fae8e | 355 | if (sym->module == NULL) |
4ee9c684 | 356 | return gfc_sym_identifier (sym); |
357 | else | |
358 | { | |
f08a3f6f | 359 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 360 | return get_identifier (name); |
361 | } | |
362 | } | |
363 | ||
364 | ||
365 | /* Construct mangled function name from symbol name. */ | |
366 | ||
367 | static tree | |
368 | gfc_sym_mangled_function_id (gfc_symbol * sym) | |
369 | { | |
370 | int has_underscore; | |
371 | char name[GFC_MAX_MANGLED_SYMBOL_LEN + 1]; | |
372 | ||
c5d33754 | 373 | /* It may be possible to simply use the binding label if it's |
374 | provided, and remove the other checks. Then we could use it | |
375 | for other things if we wished. */ | |
376 | if ((sym->attr.is_bind_c == 1 || sym->attr.is_iso_c == 1) && | |
7b2060ba | 377 | sym->binding_label) |
c5d33754 | 378 | /* use the binding label rather than the mangled name */ |
379 | return get_identifier (sym->binding_label); | |
380 | ||
4b8eb6ca | 381 | if ((sym->module == NULL || sym->attr.proc == PROC_EXTERNAL |
12441a18 | 382 | || (sym->module != NULL && (sym->attr.external |
383 | || sym->attr.if_source == IFSRC_IFBODY))) | |
4b8eb6ca | 384 | && !sym->attr.module_procedure) |
4ee9c684 | 385 | { |
a2f97da7 | 386 | /* Main program is mangled into MAIN__. */ |
387 | if (sym->attr.is_main_program) | |
388 | return get_identifier ("MAIN__"); | |
389 | ||
390 | /* Intrinsic procedures are never mangled. */ | |
391 | if (sym->attr.proc == PROC_INTRINSIC) | |
4ee9c684 | 392 | return get_identifier (sym->name); |
393 | ||
829d7a08 | 394 | if (flag_underscoring) |
4ee9c684 | 395 | { |
396 | has_underscore = strchr (sym->name, '_') != 0; | |
eb106faf | 397 | if (flag_second_underscore && has_underscore) |
4ee9c684 | 398 | snprintf (name, sizeof name, "%s__", sym->name); |
399 | else | |
400 | snprintf (name, sizeof name, "%s_", sym->name); | |
401 | return get_identifier (name); | |
402 | } | |
403 | else | |
404 | return get_identifier (sym->name); | |
405 | } | |
406 | else | |
407 | { | |
f08a3f6f | 408 | snprintf (name, sizeof name, "__%s_MOD_%s", sym->module, sym->name); |
4ee9c684 | 409 | return get_identifier (name); |
410 | } | |
411 | } | |
412 | ||
413 | ||
1236e28b | 414 | void |
415 | gfc_set_decl_assembler_name (tree decl, tree name) | |
416 | { | |
417 | tree target_mangled = targetm.mangle_decl_assembler_name (decl, name); | |
418 | SET_DECL_ASSEMBLER_NAME (decl, target_mangled); | |
419 | } | |
420 | ||
421 | ||
5ed82495 | 422 | /* Returns true if a variable of specified size should go on the stack. */ |
423 | ||
424 | int | |
425 | gfc_can_put_var_on_stack (tree size) | |
426 | { | |
427 | unsigned HOST_WIDE_INT low; | |
428 | ||
429 | if (!INTEGER_CST_P (size)) | |
430 | return 0; | |
431 | ||
eb106faf | 432 | if (flag_max_stack_var_size < 0) |
5ed82495 | 433 | return 1; |
434 | ||
e1d65c9f | 435 | if (!tree_fits_uhwi_p (size)) |
5ed82495 | 436 | return 0; |
437 | ||
f9ae6f95 | 438 | low = TREE_INT_CST_LOW (size); |
eb106faf | 439 | if (low > (unsigned HOST_WIDE_INT) flag_max_stack_var_size) |
5ed82495 | 440 | return 0; |
441 | ||
442 | /* TODO: Set a per-function stack size limit. */ | |
443 | ||
444 | return 1; | |
445 | } | |
446 | ||
447 | ||
b7bf3f81 | 448 | /* gfc_finish_cray_pointee sets DECL_VALUE_EXPR for a Cray pointee to |
449 | an expression involving its corresponding pointer. There are | |
450 | 2 cases; one for variable size arrays, and one for everything else, | |
451 | because variable-sized arrays require one fewer level of | |
452 | indirection. */ | |
453 | ||
454 | static void | |
455 | gfc_finish_cray_pointee (tree decl, gfc_symbol *sym) | |
456 | { | |
457 | tree ptr_decl = gfc_get_symbol_decl (sym->cp_pointer); | |
458 | tree value; | |
459 | ||
460 | /* Parameters need to be dereferenced. */ | |
a90fe829 | 461 | if (sym->cp_pointer->attr.dummy) |
389dd41b | 462 | ptr_decl = build_fold_indirect_ref_loc (input_location, |
463 | ptr_decl); | |
b7bf3f81 | 464 | |
465 | /* Check to see if we're dealing with a variable-sized array. */ | |
466 | if (sym->attr.dimension | |
a90fe829 | 467 | && TREE_CODE (TREE_TYPE (decl)) == POINTER_TYPE) |
468 | { | |
942043f8 | 469 | /* These decls will be dereferenced later, so we don't dereference |
b7bf3f81 | 470 | them here. */ |
471 | value = convert (TREE_TYPE (decl), ptr_decl); | |
472 | } | |
473 | else | |
474 | { | |
475 | ptr_decl = convert (build_pointer_type (TREE_TYPE (decl)), | |
476 | ptr_decl); | |
389dd41b | 477 | value = build_fold_indirect_ref_loc (input_location, |
478 | ptr_decl); | |
b7bf3f81 | 479 | } |
480 | ||
481 | SET_DECL_VALUE_EXPR (decl, value); | |
482 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
764f1175 | 483 | GFC_DECL_CRAY_POINTEE (decl) = 1; |
b7bf3f81 | 484 | } |
485 | ||
486 | ||
b9c7fce7 | 487 | /* Finish processing of a declaration without an initial value. */ |
4ee9c684 | 488 | |
489 | static void | |
b9c7fce7 | 490 | gfc_finish_decl (tree decl) |
4ee9c684 | 491 | { |
b9c7fce7 | 492 | gcc_assert (TREE_CODE (decl) == PARM_DECL |
493 | || DECL_INITIAL (decl) == NULL_TREE); | |
4ee9c684 | 494 | |
b9c7fce7 | 495 | if (TREE_CODE (decl) != VAR_DECL) |
496 | return; | |
4ee9c684 | 497 | |
b9c7fce7 | 498 | if (DECL_SIZE (decl) == NULL_TREE |
499 | && TYPE_SIZE (TREE_TYPE (decl)) != NULL_TREE) | |
500 | layout_decl (decl, 0); | |
501 | ||
502 | /* A few consistency checks. */ | |
503 | /* A static variable with an incomplete type is an error if it is | |
504 | initialized. Also if it is not file scope. Otherwise, let it | |
505 | through, but if it is not `extern' then it may cause an error | |
506 | message later. */ | |
507 | /* An automatic variable with an incomplete type is an error. */ | |
508 | ||
509 | /* We should know the storage size. */ | |
510 | gcc_assert (DECL_SIZE (decl) != NULL_TREE | |
a90fe829 | 511 | || (TREE_STATIC (decl) |
b9c7fce7 | 512 | ? (!DECL_INITIAL (decl) || !DECL_CONTEXT (decl)) |
513 | : DECL_EXTERNAL (decl))); | |
514 | ||
515 | /* The storage size should be constant. */ | |
516 | gcc_assert ((!DECL_EXTERNAL (decl) && !TREE_STATIC (decl)) | |
517 | || !DECL_SIZE (decl) | |
518 | || TREE_CODE (DECL_SIZE (decl)) == INTEGER_CST); | |
4ee9c684 | 519 | } |
520 | ||
521 | ||
cf5f881f | 522 | /* Handle setting of GFC_DECL_SCALAR* on DECL. */ |
523 | ||
524 | void | |
525 | gfc_finish_decl_attrs (tree decl, symbol_attribute *attr) | |
526 | { | |
527 | if (!attr->dimension && !attr->codimension) | |
528 | { | |
529 | /* Handle scalar allocatable variables. */ | |
530 | if (attr->allocatable) | |
531 | { | |
532 | gfc_allocate_lang_decl (decl); | |
533 | GFC_DECL_SCALAR_ALLOCATABLE (decl) = 1; | |
534 | } | |
535 | /* Handle scalar pointer variables. */ | |
536 | if (attr->pointer) | |
537 | { | |
538 | gfc_allocate_lang_decl (decl); | |
539 | GFC_DECL_SCALAR_POINTER (decl) = 1; | |
540 | } | |
541 | } | |
542 | } | |
543 | ||
544 | ||
4ee9c684 | 545 | /* Apply symbol attributes to a variable, and add it to the function scope. */ |
546 | ||
547 | static void | |
548 | gfc_finish_var_decl (tree decl, gfc_symbol * sym) | |
549 | { | |
c1977dbe | 550 | tree new_type; |
b549d2a5 | 551 | |
b7bf3f81 | 552 | /* Set DECL_VALUE_EXPR for Cray Pointees. */ |
b549d2a5 | 553 | if (sym->attr.cray_pointee) |
b7bf3f81 | 554 | gfc_finish_cray_pointee (decl, sym); |
b549d2a5 | 555 | |
845a9546 | 556 | /* TREE_ADDRESSABLE means the address of this variable is actually needed. |
557 | This is the equivalent of the TARGET variables. | |
558 | We also need to set this if the variable is passed by reference in a | |
559 | CALL statement. */ | |
4ee9c684 | 560 | if (sym->attr.target) |
561 | TREE_ADDRESSABLE (decl) = 1; | |
845a9546 | 562 | |
4ee9c684 | 563 | /* If it wasn't used we wouldn't be getting it. */ |
564 | TREE_USED (decl) = 1; | |
565 | ||
7415cfe4 | 566 | if (sym->attr.flavor == FL_PARAMETER |
567 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) | |
568 | TREE_READONLY (decl) = 1; | |
569 | ||
4ee9c684 | 570 | /* Chain this decl to the pending declarations. Don't do pushdecl() |
571 | because this would add them to the current scope rather than the | |
572 | function scope. */ | |
573 | if (current_function_decl != NULL_TREE) | |
574 | { | |
7af6a4af | 575 | if (sym->ns->proc_name->backend_decl == current_function_decl |
6a7084d7 | 576 | || sym->result == sym) |
4ee9c684 | 577 | gfc_add_decl_to_function (decl); |
6a7084d7 | 578 | else if (sym->ns->proc_name->attr.flavor == FL_LABEL) |
579 | /* This is a BLOCK construct. */ | |
580 | add_decl_as_local (decl); | |
4ee9c684 | 581 | else |
582 | gfc_add_decl_to_parent_function (decl); | |
583 | } | |
584 | ||
b7bf3f81 | 585 | if (sym->attr.cray_pointee) |
586 | return; | |
587 | ||
c5cb468c | 588 | if(sym->attr.is_bind_c == 1 && sym->binding_label) |
c5d33754 | 589 | { |
590 | /* We need to put variables that are bind(c) into the common | |
591 | segment of the object file, because this is what C would do. | |
592 | gfortran would typically put them in either the BSS or | |
593 | initialized data segments, and only mark them as common if | |
594 | they were part of common blocks. However, if they are not put | |
ea657963 | 595 | into common space, then C cannot initialize global Fortran |
c5d33754 | 596 | variables that it interoperates with and the draft says that |
597 | either Fortran or C should be able to initialize it (but not | |
598 | both, of course.) (J3/04-007, section 15.3). */ | |
599 | TREE_PUBLIC(decl) = 1; | |
600 | DECL_COMMON(decl) = 1; | |
c8ddfd5d | 601 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
602 | { | |
603 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
604 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
605 | } | |
c5d33754 | 606 | } |
a90fe829 | 607 | |
4ee9c684 | 608 | /* If a variable is USE associated, it's always external. */ |
4b8eb6ca | 609 | if (sym->attr.use_assoc || sym->attr.used_in_submodule) |
4ee9c684 | 610 | { |
611 | DECL_EXTERNAL (decl) = 1; | |
612 | TREE_PUBLIC (decl) = 1; | |
613 | } | |
4f0fae8e | 614 | else if (sym->module && !sym->attr.result && !sym->attr.dummy) |
4ee9c684 | 615 | { |
6b20224d | 616 | /* TODO: Don't set sym->module for result or dummy variables. */ |
7af6a4af | 617 | gcc_assert (current_function_decl == NULL_TREE || sym->result == sym); |
7d6b5754 | 618 | |
c8ddfd5d | 619 | TREE_PUBLIC (decl) = 1; |
4ee9c684 | 620 | TREE_STATIC (decl) = 1; |
c8ddfd5d | 621 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) |
622 | { | |
623 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
624 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
625 | } | |
4ee9c684 | 626 | } |
627 | ||
f0d4969f | 628 | /* Derived types are a bit peculiar because of the possibility of |
629 | a default initializer; this must be applied each time the variable | |
630 | comes into scope it therefore need not be static. These variables | |
631 | are SAVE_NONE but have an initializer. Otherwise explicitly | |
69b1505f | 632 | initialized variables are SAVE_IMPLICIT and explicitly saved are |
f0d4969f | 633 | SAVE_EXPLICIT. */ |
634 | if (!sym->attr.use_assoc | |
635 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
a961ca30 | 636 | || (sym->value && sym->ns->proc_name->attr.is_main_program) |
4fe73152 | 637 | || (flag_coarray == GFC_FCOARRAY_LIB |
a961ca30 | 638 | && sym->attr.codimension && !sym->attr.allocatable))) |
4ee9c684 | 639 | TREE_STATIC (decl) = 1; |
ef814c81 | 640 | |
641 | if (sym->attr.volatile_) | |
642 | { | |
ef814c81 | 643 | TREE_THIS_VOLATILE (decl) = 1; |
2364aa60 | 644 | TREE_SIDE_EFFECTS (decl) = 1; |
c1977dbe | 645 | new_type = build_qualified_type (TREE_TYPE (decl), TYPE_QUAL_VOLATILE); |
646 | TREE_TYPE (decl) = new_type; | |
a90fe829 | 647 | } |
ef814c81 | 648 | |
4ee9c684 | 649 | /* Keep variables larger than max-stack-var-size off stack. */ |
650 | if (!sym->ns->proc_name->attr.recursive | |
651 | && INTEGER_CST_P (DECL_SIZE_UNIT (decl)) | |
a3f2c0e1 | 652 | && !gfc_can_put_var_on_stack (DECL_SIZE_UNIT (decl)) |
653 | /* Put variable length auto array pointers always into stack. */ | |
654 | && (TREE_CODE (TREE_TYPE (decl)) != POINTER_TYPE | |
655 | || sym->attr.dimension == 0 | |
656 | || sym->as->type != AS_EXPLICIT | |
657 | || sym->attr.pointer | |
658 | || sym->attr.allocatable) | |
659 | && !DECL_ARTIFICIAL (decl)) | |
4ee9c684 | 660 | TREE_STATIC (decl) = 1; |
764f1175 | 661 | |
662 | /* Handle threadprivate variables. */ | |
9dda1f80 | 663 | if (sym->attr.threadprivate |
764f1175 | 664 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) |
5e68df57 | 665 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
cf5f881f | 666 | |
667 | gfc_finish_decl_attrs (decl, &sym->attr); | |
4ee9c684 | 668 | } |
669 | ||
670 | ||
671 | /* Allocate the lang-specific part of a decl. */ | |
672 | ||
673 | void | |
674 | gfc_allocate_lang_decl (tree decl) | |
675 | { | |
cf5f881f | 676 | if (DECL_LANG_SPECIFIC (decl) == NULL) |
677 | DECL_LANG_SPECIFIC (decl) = ggc_cleared_alloc<struct lang_decl> (); | |
4ee9c684 | 678 | } |
679 | ||
680 | /* Remember a symbol to generate initialization/cleanup code at function | |
681 | entry/exit. */ | |
682 | ||
683 | static void | |
684 | gfc_defer_symbol_init (gfc_symbol * sym) | |
685 | { | |
686 | gfc_symbol *p; | |
687 | gfc_symbol *last; | |
688 | gfc_symbol *head; | |
689 | ||
690 | /* Don't add a symbol twice. */ | |
691 | if (sym->tlink) | |
692 | return; | |
693 | ||
694 | last = head = sym->ns->proc_name; | |
695 | p = last->tlink; | |
696 | ||
697 | /* Make sure that setup code for dummy variables which are used in the | |
698 | setup of other variables is generated first. */ | |
699 | if (sym->attr.dummy) | |
700 | { | |
701 | /* Find the first dummy arg seen after us, or the first non-dummy arg. | |
702 | This is a circular list, so don't go past the head. */ | |
703 | while (p != head | |
704 | && (!p->attr.dummy || p->dummy_order > sym->dummy_order)) | |
705 | { | |
706 | last = p; | |
707 | p = p->tlink; | |
708 | } | |
709 | } | |
710 | /* Insert in between last and p. */ | |
711 | last->tlink = sym; | |
712 | sym->tlink = p; | |
713 | } | |
714 | ||
715 | ||
9f5a9ac5 | 716 | /* Used in gfc_get_symbol_decl and gfc_get_derived_type to obtain the |
717 | backend_decl for a module symbol, if it all ready exists. If the | |
718 | module gsymbol does not exist, it is created. If the symbol does | |
719 | not exist, it is added to the gsymbol namespace. Returns true if | |
720 | an existing backend_decl is found. */ | |
721 | ||
722 | bool | |
723 | gfc_get_module_backend_decl (gfc_symbol *sym) | |
724 | { | |
725 | gfc_gsymbol *gsym; | |
726 | gfc_symbol *s; | |
727 | gfc_symtree *st; | |
728 | ||
729 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
730 | ||
731 | if (!gsym || (gsym->ns && gsym->type == GSYM_MODULE)) | |
732 | { | |
733 | st = NULL; | |
734 | s = NULL; | |
735 | ||
d7cd448a | 736 | /* Check for a symbol with the same name. */ |
9f5a9ac5 | 737 | if (gsym) |
738 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
739 | ||
740 | if (!s) | |
741 | { | |
742 | if (!gsym) | |
743 | { | |
744 | gsym = gfc_get_gsymbol (sym->module); | |
745 | gsym->type = GSYM_MODULE; | |
746 | gsym->ns = gfc_get_namespace (NULL, 0); | |
747 | } | |
748 | ||
749 | st = gfc_new_symtree (&gsym->ns->sym_root, sym->name); | |
750 | st->n.sym = sym; | |
751 | sym->refs++; | |
752 | } | |
d7cd448a | 753 | else if (gfc_fl_struct (sym->attr.flavor)) |
9f5a9ac5 | 754 | { |
c2958b6b | 755 | if (s && s->attr.flavor == FL_PROCEDURE) |
756 | { | |
757 | gfc_interface *intr; | |
758 | gcc_assert (s->attr.generic); | |
759 | for (intr = s->generic; intr; intr = intr->next) | |
d7cd448a | 760 | if (gfc_fl_struct (intr->sym->attr.flavor)) |
c2958b6b | 761 | { |
762 | s = intr->sym; | |
763 | break; | |
764 | } | |
765 | } | |
766 | ||
d7cd448a | 767 | /* Normally we can assume that s is a derived-type symbol since it |
768 | shares a name with the derived-type sym. However if sym is a | |
769 | STRUCTURE, it may in fact share a name with any other basic type | |
770 | variable. If s is in fact of derived type then we can continue | |
771 | looking for a duplicate type declaration. */ | |
772 | if (sym->attr.flavor == FL_STRUCT && s->ts.type == BT_DERIVED) | |
773 | { | |
774 | s = s->ts.u.derived; | |
775 | } | |
776 | ||
777 | if (gfc_fl_struct (s->attr.flavor) && !s->backend_decl) | |
778 | { | |
779 | if (s->attr.flavor == FL_UNION) | |
780 | s->backend_decl = gfc_get_union_type (s); | |
781 | else | |
782 | s->backend_decl = gfc_get_derived_type (s); | |
783 | } | |
9f5a9ac5 | 784 | gfc_copy_dt_decls_ifequal (s, sym, true); |
785 | return true; | |
786 | } | |
787 | else if (s->backend_decl) | |
788 | { | |
85ec2f13 | 789 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
9f5a9ac5 | 790 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, |
791 | true); | |
792 | else if (sym->ts.type == BT_CHARACTER) | |
793 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
794 | sym->backend_decl = s->backend_decl; | |
795 | return true; | |
796 | } | |
797 | } | |
798 | return false; | |
799 | } | |
800 | ||
801 | ||
4ee9c684 | 802 | /* Create an array index type variable with function scope. */ |
803 | ||
804 | static tree | |
805 | create_index_var (const char * pfx, int nest) | |
806 | { | |
807 | tree decl; | |
808 | ||
809 | decl = gfc_create_var_np (gfc_array_index_type, pfx); | |
810 | if (nest) | |
811 | gfc_add_decl_to_parent_function (decl); | |
812 | else | |
813 | gfc_add_decl_to_function (decl); | |
814 | return decl; | |
815 | } | |
816 | ||
817 | ||
818 | /* Create variables to hold all the non-constant bits of info for a | |
819 | descriptorless array. Remember these in the lang-specific part of the | |
820 | type. */ | |
821 | ||
822 | static void | |
823 | gfc_build_qualified_array (tree decl, gfc_symbol * sym) | |
824 | { | |
825 | tree type; | |
826 | int dim; | |
827 | int nest; | |
7b82374f | 828 | gfc_namespace* procns; |
c6793847 | 829 | symbol_attribute *array_attr; |
830 | gfc_array_spec *as; | |
831 | bool is_classarray = IS_CLASS_ARRAY (sym); | |
4ee9c684 | 832 | |
833 | type = TREE_TYPE (decl); | |
c6793847 | 834 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; |
835 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4ee9c684 | 836 | |
837 | /* We just use the descriptor, if there is one. */ | |
838 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
839 | return; | |
840 | ||
22d678e8 | 841 | gcc_assert (GFC_ARRAY_TYPE_P (type)); |
7b82374f | 842 | procns = gfc_find_proc_namespace (sym->ns); |
843 | nest = (procns->proc_name->backend_decl != current_function_decl) | |
4ee9c684 | 844 | && !sym->attr.contained; |
845 | ||
c6793847 | 846 | if (array_attr->codimension && flag_coarray == GFC_FCOARRAY_LIB |
847 | && as->type != AS_ASSUMED_SHAPE | |
a961ca30 | 848 | && GFC_TYPE_ARRAY_CAF_TOKEN (type) == NULL_TREE) |
849 | { | |
850 | tree token; | |
ac36faf0 | 851 | tree token_type = build_qualified_type (pvoid_type_node, |
852 | TYPE_QUAL_RESTRICT); | |
853 | ||
854 | if (sym->module && (sym->attr.use_assoc | |
855 | || sym->ns->proc_name->attr.flavor == FL_MODULE)) | |
856 | { | |
857 | tree token_name | |
858 | = get_identifier (gfc_get_string (GFC_PREFIX ("caf_token%s"), | |
859 | IDENTIFIER_POINTER (gfc_sym_mangled_identifier (sym)))); | |
860 | token = build_decl (DECL_SOURCE_LOCATION (decl), VAR_DECL, token_name, | |
861 | token_type); | |
3adf245a | 862 | if (sym->attr.use_assoc) |
863 | DECL_EXTERNAL (token) = 1; | |
864 | else | |
865 | TREE_STATIC (token) = 1; | |
866 | ||
c8ddfd5d | 867 | TREE_PUBLIC (token) = 1; |
868 | ||
869 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
870 | { | |
871 | DECL_VISIBILITY (token) = VISIBILITY_HIDDEN; | |
872 | DECL_VISIBILITY_SPECIFIED (token) = true; | |
873 | } | |
ac36faf0 | 874 | } |
875 | else | |
3adf245a | 876 | { |
877 | token = gfc_create_var_np (token_type, "caf_token"); | |
878 | TREE_STATIC (token) = 1; | |
879 | } | |
a961ca30 | 880 | |
a961ca30 | 881 | GFC_TYPE_ARRAY_CAF_TOKEN (type) = token; |
882 | DECL_ARTIFICIAL (token) = 1; | |
3adf245a | 883 | DECL_NONALIASED (token) = 1; |
884 | ||
885 | if (sym->module && !sym->attr.use_assoc) | |
886 | { | |
887 | pushdecl (token); | |
888 | DECL_CONTEXT (token) = sym->ns->proc_name->backend_decl; | |
889 | gfc_module_add_decl (cur_module, token); | |
890 | } | |
891 | else | |
892 | gfc_add_decl_to_function (token); | |
a961ca30 | 893 | } |
894 | ||
4ee9c684 | 895 | for (dim = 0; dim < GFC_TYPE_ARRAY_RANK (type); dim++) |
896 | { | |
897 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
86254bbf | 898 | { |
899 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
900 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
901 | } | |
9ca15c9b | 902 | /* Don't try to use the unknown bound for assumed shape arrays. */ |
4ee9c684 | 903 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE |
c6793847 | 904 | && (as->type != AS_ASSUMED_SIZE |
905 | || dim < GFC_TYPE_ARRAY_RANK (type) - 1)) | |
86254bbf | 906 | { |
907 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
908 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
909 | } | |
4ee9c684 | 910 | |
911 | if (GFC_TYPE_ARRAY_STRIDE (type, dim) == NULL_TREE) | |
86254bbf | 912 | { |
913 | GFC_TYPE_ARRAY_STRIDE (type, dim) = create_index_var ("stride", nest); | |
914 | TREE_NO_WARNING (GFC_TYPE_ARRAY_STRIDE (type, dim)) = 1; | |
915 | } | |
4ee9c684 | 916 | } |
076094b7 | 917 | for (dim = GFC_TYPE_ARRAY_RANK (type); |
918 | dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type); dim++) | |
919 | { | |
920 | if (GFC_TYPE_ARRAY_LBOUND (type, dim) == NULL_TREE) | |
921 | { | |
922 | GFC_TYPE_ARRAY_LBOUND (type, dim) = create_index_var ("lbound", nest); | |
923 | TREE_NO_WARNING (GFC_TYPE_ARRAY_LBOUND (type, dim)) = 1; | |
924 | } | |
925 | /* Don't try to use the unknown ubound for the last coarray dimension. */ | |
926 | if (GFC_TYPE_ARRAY_UBOUND (type, dim) == NULL_TREE | |
927 | && dim < GFC_TYPE_ARRAY_RANK (type) + GFC_TYPE_ARRAY_CORANK (type) - 1) | |
928 | { | |
929 | GFC_TYPE_ARRAY_UBOUND (type, dim) = create_index_var ("ubound", nest); | |
930 | TREE_NO_WARNING (GFC_TYPE_ARRAY_UBOUND (type, dim)) = 1; | |
931 | } | |
932 | } | |
4ee9c684 | 933 | if (GFC_TYPE_ARRAY_OFFSET (type) == NULL_TREE) |
934 | { | |
935 | GFC_TYPE_ARRAY_OFFSET (type) = gfc_create_var_np (gfc_array_index_type, | |
936 | "offset"); | |
86254bbf | 937 | TREE_NO_WARNING (GFC_TYPE_ARRAY_OFFSET (type)) = 1; |
938 | ||
4ee9c684 | 939 | if (nest) |
940 | gfc_add_decl_to_parent_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
941 | else | |
942 | gfc_add_decl_to_function (GFC_TYPE_ARRAY_OFFSET (type)); | |
943 | } | |
d4163395 | 944 | |
945 | if (GFC_TYPE_ARRAY_SIZE (type) == NULL_TREE | |
c6793847 | 946 | && as->type != AS_ASSUMED_SIZE) |
86254bbf | 947 | { |
948 | GFC_TYPE_ARRAY_SIZE (type) = create_index_var ("size", nest); | |
949 | TREE_NO_WARNING (GFC_TYPE_ARRAY_SIZE (type)) = 1; | |
950 | } | |
d4163395 | 951 | |
952 | if (POINTER_TYPE_P (type)) | |
953 | { | |
954 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (type))); | |
955 | gcc_assert (TYPE_LANG_SPECIFIC (type) | |
956 | == TYPE_LANG_SPECIFIC (TREE_TYPE (type))); | |
957 | type = TREE_TYPE (type); | |
958 | } | |
959 | ||
960 | if (! COMPLETE_TYPE_P (type) && GFC_TYPE_ARRAY_SIZE (type)) | |
961 | { | |
962 | tree size, range; | |
963 | ||
fd779e1d | 964 | size = fold_build2_loc (input_location, MINUS_EXPR, gfc_array_index_type, |
965 | GFC_TYPE_ARRAY_SIZE (type), gfc_index_one_node); | |
d4163395 | 966 | range = build_range_type (gfc_array_index_type, gfc_index_zero_node, |
967 | size); | |
968 | TYPE_DOMAIN (type) = range; | |
969 | layout_type (type); | |
970 | } | |
6cf159a6 | 971 | |
6cf159a6 | 972 | if (TYPE_NAME (type) != NULL_TREE |
c6793847 | 973 | && GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1) != NULL_TREE |
974 | && TREE_CODE (GFC_TYPE_ARRAY_UBOUND (type, as->rank - 1)) == VAR_DECL) | |
6cf159a6 | 975 | { |
976 | tree gtype = DECL_ORIGINAL_TYPE (TYPE_NAME (type)); | |
977 | ||
c6793847 | 978 | for (dim = 0; dim < as->rank - 1; dim++) |
6cf159a6 | 979 | { |
980 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
981 | gtype = TREE_TYPE (gtype); | |
982 | } | |
983 | gcc_assert (TREE_CODE (gtype) == ARRAY_TYPE); | |
984 | if (TYPE_MAX_VALUE (TYPE_DOMAIN (gtype)) == NULL) | |
985 | TYPE_NAME (type) = NULL_TREE; | |
986 | } | |
987 | ||
988 | if (TYPE_NAME (type) == NULL_TREE) | |
989 | { | |
990 | tree gtype = TREE_TYPE (type), rtype, type_decl; | |
991 | ||
c6793847 | 992 | for (dim = as->rank - 1; dim >= 0; dim--) |
6cf159a6 | 993 | { |
7130ec9d | 994 | tree lbound, ubound; |
995 | lbound = GFC_TYPE_ARRAY_LBOUND (type, dim); | |
996 | ubound = GFC_TYPE_ARRAY_UBOUND (type, dim); | |
997 | rtype = build_range_type (gfc_array_index_type, lbound, ubound); | |
6cf159a6 | 998 | gtype = build_array_type (gtype, rtype); |
3c8f1d7e | 999 | /* Ensure the bound variables aren't optimized out at -O0. |
1000 | For -O1 and above they often will be optimized out, but | |
84bfaaeb | 1001 | can be tracked by VTA. Also set DECL_NAMELESS, so that |
1002 | the artificial lbound.N or ubound.N DECL_NAME doesn't | |
1003 | end up in debug info. */ | |
7130ec9d | 1004 | if (lbound && TREE_CODE (lbound) == VAR_DECL |
1005 | && DECL_ARTIFICIAL (lbound) && DECL_IGNORED_P (lbound)) | |
1006 | { | |
1007 | if (DECL_NAME (lbound) | |
1008 | && strstr (IDENTIFIER_POINTER (DECL_NAME (lbound)), | |
1009 | "lbound") != 0) | |
84bfaaeb | 1010 | DECL_NAMELESS (lbound) = 1; |
7130ec9d | 1011 | DECL_IGNORED_P (lbound) = 0; |
1012 | } | |
1013 | if (ubound && TREE_CODE (ubound) == VAR_DECL | |
1014 | && DECL_ARTIFICIAL (ubound) && DECL_IGNORED_P (ubound)) | |
1015 | { | |
1016 | if (DECL_NAME (ubound) | |
1017 | && strstr (IDENTIFIER_POINTER (DECL_NAME (ubound)), | |
1018 | "ubound") != 0) | |
84bfaaeb | 1019 | DECL_NAMELESS (ubound) = 1; |
7130ec9d | 1020 | DECL_IGNORED_P (ubound) = 0; |
1021 | } | |
6cf159a6 | 1022 | } |
e60a6f7b | 1023 | TYPE_NAME (type) = type_decl = build_decl (input_location, |
1024 | TYPE_DECL, NULL, gtype); | |
6cf159a6 | 1025 | DECL_ORIGINAL_TYPE (type_decl) = gtype; |
1026 | } | |
4ee9c684 | 1027 | } |
1028 | ||
1029 | ||
1030 | /* For some dummy arguments we don't use the actual argument directly. | |
5ed82495 | 1031 | Instead we create a local decl and use that. This allows us to perform |
4ee9c684 | 1032 | initialization, and construct full type information. */ |
1033 | ||
1034 | static tree | |
1035 | gfc_build_dummy_array_decl (gfc_symbol * sym, tree dummy) | |
1036 | { | |
1037 | tree decl; | |
1038 | tree type; | |
1039 | gfc_array_spec *as; | |
c6793847 | 1040 | symbol_attribute *array_attr; |
4ee9c684 | 1041 | char *name; |
3d8dea5a | 1042 | gfc_packed packed; |
4ee9c684 | 1043 | int n; |
1044 | bool known_size; | |
c6793847 | 1045 | bool is_classarray = IS_CLASS_ARRAY (sym); |
1046 | ||
1047 | /* Use the array as and attr. */ | |
1048 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
1049 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
1050 | ||
1051 | /* The dummy is returned for pointer, allocatable or assumed rank arrays. | |
1052 | For class arrays the information if sym is an allocatable or pointer | |
1053 | object needs to be checked explicitly (IS_CLASS_ARRAY can be false for | |
1054 | too many reasons to be of use here). */ | |
1055 | if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
1056 | || (sym->ts.type == BT_CLASS && CLASS_DATA (sym)->attr.class_pointer) | |
1057 | || array_attr->allocatable | |
1058 | || (as && as->type == AS_ASSUMED_RANK)) | |
4ee9c684 | 1059 | return dummy; |
1060 | ||
c6793847 | 1061 | /* Add to list of variables if not a fake result variable. |
1062 | These symbols are set on the symbol only, not on the class component. */ | |
4ee9c684 | 1063 | if (sym->attr.result || sym->attr.dummy) |
1064 | gfc_defer_symbol_init (sym); | |
1065 | ||
c6793847 | 1066 | /* For a class array the array descriptor is in the _data component, while |
1067 | for a regular array the TREE_TYPE of the dummy is a pointer to the | |
1068 | descriptor. */ | |
1069 | type = TREE_TYPE (is_classarray ? gfc_class_data_get (dummy) | |
1070 | : TREE_TYPE (dummy)); | |
1071 | /* type now is the array descriptor w/o any indirection. */ | |
22d678e8 | 1072 | gcc_assert (TREE_CODE (dummy) == PARM_DECL |
c6793847 | 1073 | && POINTER_TYPE_P (TREE_TYPE (dummy))); |
4ee9c684 | 1074 | |
f888a3fb | 1075 | /* Do we know the element size? */ |
4ee9c684 | 1076 | known_size = sym->ts.type != BT_CHARACTER |
eeebe20b | 1077 | || INTEGER_CST_P (sym->ts.u.cl->backend_decl); |
a90fe829 | 1078 | |
c6793847 | 1079 | if (known_size && !GFC_DESCRIPTOR_TYPE_P (type)) |
4ee9c684 | 1080 | { |
1081 | /* For descriptorless arrays with known element size the actual | |
1082 | argument is sufficient. */ | |
4ee9c684 | 1083 | gfc_build_qualified_array (dummy, sym); |
1084 | return dummy; | |
1085 | } | |
1086 | ||
4ee9c684 | 1087 | if (GFC_DESCRIPTOR_TYPE_P (type)) |
1088 | { | |
cb8e3560 | 1089 | /* Create a descriptorless array pointer. */ |
3d8dea5a | 1090 | packed = PACKED_NO; |
3d235846 | 1091 | |
1092 | /* Even when -frepack-arrays is used, symbols with TARGET attribute | |
1093 | are not repacked. */ | |
829d7a08 | 1094 | if (!flag_repack_arrays || sym->attr.target) |
4ee9c684 | 1095 | { |
1096 | if (as->type == AS_ASSUMED_SIZE) | |
3d8dea5a | 1097 | packed = PACKED_FULL; |
4ee9c684 | 1098 | } |
1099 | else | |
1100 | { | |
1101 | if (as->type == AS_EXPLICIT) | |
1102 | { | |
3d8dea5a | 1103 | packed = PACKED_FULL; |
4ee9c684 | 1104 | for (n = 0; n < as->rank; n++) |
1105 | { | |
1106 | if (!(as->upper[n] | |
1107 | && as->lower[n] | |
1108 | && as->upper[n]->expr_type == EXPR_CONSTANT | |
1109 | && as->lower[n]->expr_type == EXPR_CONSTANT)) | |
73bd65ab | 1110 | { |
1111 | packed = PACKED_PARTIAL; | |
1112 | break; | |
1113 | } | |
4ee9c684 | 1114 | } |
1115 | } | |
1116 | else | |
3d8dea5a | 1117 | packed = PACKED_PARTIAL; |
4ee9c684 | 1118 | } |
1119 | ||
c6793847 | 1120 | /* For classarrays the element type is required, but |
1121 | gfc_typenode_for_spec () returns the array descriptor. */ | |
1122 | type = is_classarray ? gfc_get_element_type (type) | |
1123 | : gfc_typenode_for_spec (&sym->ts); | |
1124 | type = gfc_get_nodesc_array_type (type, as, packed, | |
e1b3b79b | 1125 | !sym->attr.target); |
4ee9c684 | 1126 | } |
1127 | else | |
1128 | { | |
1129 | /* We now have an expression for the element size, so create a fully | |
1130 | qualified type. Reset sym->backend decl or this will just return the | |
1131 | old type. */ | |
d95efb59 | 1132 | DECL_ARTIFICIAL (sym->backend_decl) = 1; |
4ee9c684 | 1133 | sym->backend_decl = NULL_TREE; |
1134 | type = gfc_sym_type (sym); | |
3d8dea5a | 1135 | packed = PACKED_FULL; |
4ee9c684 | 1136 | } |
1137 | ||
1138 | ASM_FORMAT_PRIVATE_NAME (name, IDENTIFIER_POINTER (DECL_NAME (dummy)), 0); | |
e60a6f7b | 1139 | decl = build_decl (input_location, |
1140 | VAR_DECL, get_identifier (name), type); | |
4ee9c684 | 1141 | |
1142 | DECL_ARTIFICIAL (decl) = 1; | |
84bfaaeb | 1143 | DECL_NAMELESS (decl) = 1; |
4ee9c684 | 1144 | TREE_PUBLIC (decl) = 0; |
1145 | TREE_STATIC (decl) = 0; | |
1146 | DECL_EXTERNAL (decl) = 0; | |
1147 | ||
a1f1e248 | 1148 | /* Avoid uninitialized warnings for optional dummy arguments. */ |
1149 | if (sym->attr.optional) | |
1150 | TREE_NO_WARNING (decl) = 1; | |
1151 | ||
4ee9c684 | 1152 | /* We should never get deferred shape arrays here. We used to because of |
1153 | frontend bugs. */ | |
c6793847 | 1154 | gcc_assert (as->type != AS_DEFERRED); |
4ee9c684 | 1155 | |
3d8dea5a | 1156 | if (packed == PACKED_PARTIAL) |
1157 | GFC_DECL_PARTIAL_PACKED_ARRAY (decl) = 1; | |
1158 | else if (packed == PACKED_FULL) | |
1159 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4ee9c684 | 1160 | |
1161 | gfc_build_qualified_array (decl, sym); | |
1162 | ||
1163 | if (DECL_LANG_SPECIFIC (dummy)) | |
1164 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (dummy); | |
1165 | else | |
1166 | gfc_allocate_lang_decl (decl); | |
1167 | ||
1168 | GFC_DECL_SAVED_DESCRIPTOR (decl) = dummy; | |
1169 | ||
1170 | if (sym->ns->proc_name->backend_decl == current_function_decl | |
1171 | || sym->attr.contained) | |
1172 | gfc_add_decl_to_function (decl); | |
1173 | else | |
1174 | gfc_add_decl_to_parent_function (decl); | |
1175 | ||
1176 | return decl; | |
1177 | } | |
1178 | ||
9579733e | 1179 | /* For symbol SYM with GFC_DECL_SAVED_DESCRIPTOR used in contained |
1180 | function add a VAR_DECL to the current function with DECL_VALUE_EXPR | |
1181 | pointing to the artificial variable for debug info purposes. */ | |
1182 | ||
1183 | static void | |
1184 | gfc_nonlocal_dummy_array_decl (gfc_symbol *sym) | |
1185 | { | |
1186 | tree decl, dummy; | |
1187 | ||
1188 | if (! nonlocal_dummy_decl_pset) | |
431205b7 | 1189 | nonlocal_dummy_decl_pset = new hash_set<tree>; |
9579733e | 1190 | |
431205b7 | 1191 | if (nonlocal_dummy_decl_pset->add (sym->backend_decl)) |
9579733e | 1192 | return; |
1193 | ||
1194 | dummy = GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl); | |
e60a6f7b | 1195 | decl = build_decl (input_location, VAR_DECL, DECL_NAME (dummy), |
9579733e | 1196 | TREE_TYPE (sym->backend_decl)); |
1197 | DECL_ARTIFICIAL (decl) = 0; | |
1198 | TREE_USED (decl) = 1; | |
1199 | TREE_PUBLIC (decl) = 0; | |
1200 | TREE_STATIC (decl) = 0; | |
1201 | DECL_EXTERNAL (decl) = 0; | |
1202 | if (DECL_BY_REFERENCE (dummy)) | |
1203 | DECL_BY_REFERENCE (decl) = 1; | |
1204 | DECL_LANG_SPECIFIC (decl) = DECL_LANG_SPECIFIC (sym->backend_decl); | |
1205 | SET_DECL_VALUE_EXPR (decl, sym->backend_decl); | |
1206 | DECL_HAS_VALUE_EXPR_P (decl) = 1; | |
1207 | DECL_CONTEXT (decl) = DECL_CONTEXT (sym->backend_decl); | |
1767a056 | 1208 | DECL_CHAIN (decl) = nonlocal_dummy_decls; |
9579733e | 1209 | nonlocal_dummy_decls = decl; |
1210 | } | |
4ee9c684 | 1211 | |
1212 | /* Return a constant or a variable to use as a string length. Does not | |
1213 | add the decl to the current scope. */ | |
1214 | ||
1215 | static tree | |
1216 | gfc_create_string_length (gfc_symbol * sym) | |
1217 | { | |
eeebe20b | 1218 | gcc_assert (sym->ts.u.cl); |
1219 | gfc_conv_const_charlen (sym->ts.u.cl); | |
a4abf8a0 | 1220 | |
eeebe20b | 1221 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
4ee9c684 | 1222 | { |
a4abf8a0 | 1223 | tree length; |
774bbd60 | 1224 | const char *name; |
4ee9c684 | 1225 | |
873f242d | 1226 | /* The string length variable shall be in static memory if it is either |
1227 | explicitly SAVED, a module variable or with -fno-automatic. Only | |
1228 | relevant is "len=:" - otherwise, it is either a constant length or | |
1229 | it is an automatic variable. */ | |
be125be0 | 1230 | bool static_length = sym->attr.save |
1231 | || sym->ns->proc_name->attr.flavor == FL_MODULE | |
eb106faf | 1232 | || (flag_max_stack_var_size == 0 |
873f242d | 1233 | && sym->ts.deferred && !sym->attr.dummy |
1234 | && !sym->attr.result && !sym->attr.function); | |
be125be0 | 1235 | |
1236 | /* Also prefix the mangled name. We need to call GFC_PREFIX for static | |
1237 | variables as some systems do not support the "." in the assembler name. | |
1238 | For nonstatic variables, the "." does not appear in assembler. */ | |
1239 | if (static_length) | |
1240 | { | |
1241 | if (sym->module) | |
1242 | name = gfc_get_string (GFC_PREFIX ("%s_MOD_%s"), sym->module, | |
1243 | sym->name); | |
1244 | else | |
1245 | name = gfc_get_string (GFC_PREFIX ("%s"), sym->name); | |
1246 | } | |
1247 | else if (sym->module) | |
774bbd60 | 1248 | name = gfc_get_string (".__%s_MOD_%s", sym->module, sym->name); |
1249 | else | |
1250 | name = gfc_get_string (".%s", sym->name); | |
1251 | ||
e60a6f7b | 1252 | length = build_decl (input_location, |
1253 | VAR_DECL, get_identifier (name), | |
9ad09405 | 1254 | gfc_charlen_type_node); |
4ee9c684 | 1255 | DECL_ARTIFICIAL (length) = 1; |
1256 | TREE_USED (length) = 1; | |
d4163395 | 1257 | if (sym->ns->proc_name->tlink != NULL) |
1258 | gfc_defer_symbol_init (sym); | |
a4abf8a0 | 1259 | |
eeebe20b | 1260 | sym->ts.u.cl->backend_decl = length; |
774bbd60 | 1261 | |
be125be0 | 1262 | if (static_length) |
774bbd60 | 1263 | TREE_STATIC (length) = 1; |
1264 | ||
1265 | if (sym->ns->proc_name->attr.flavor == FL_MODULE | |
1266 | && (sym->attr.access != ACCESS_PRIVATE || sym->attr.public_used)) | |
1267 | TREE_PUBLIC (length) = 1; | |
4ee9c684 | 1268 | } |
1269 | ||
eeebe20b | 1270 | gcc_assert (sym->ts.u.cl->backend_decl != NULL_TREE); |
1271 | return sym->ts.u.cl->backend_decl; | |
4ee9c684 | 1272 | } |
1273 | ||
c8f1568f | 1274 | /* If a variable is assigned a label, we add another two auxiliary |
1275 | variables. */ | |
1276 | ||
1277 | static void | |
1278 | gfc_add_assign_aux_vars (gfc_symbol * sym) | |
1279 | { | |
1280 | tree addr; | |
1281 | tree length; | |
1282 | tree decl; | |
1283 | ||
1284 | gcc_assert (sym->backend_decl); | |
1285 | ||
1286 | decl = sym->backend_decl; | |
1287 | gfc_allocate_lang_decl (decl); | |
1288 | GFC_DECL_ASSIGN (decl) = 1; | |
e60a6f7b | 1289 | length = build_decl (input_location, |
1290 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1291 | gfc_charlen_type_node); |
e60a6f7b | 1292 | addr = build_decl (input_location, |
1293 | VAR_DECL, create_tmp_var_name (sym->name), | |
c8f1568f | 1294 | pvoid_type_node); |
1295 | gfc_finish_var_decl (length, sym); | |
1296 | gfc_finish_var_decl (addr, sym); | |
1297 | /* STRING_LENGTH is also used as flag. Less than -1 means that | |
1298 | ASSIGN_ADDR can not be used. Equal -1 means that ASSIGN_ADDR is the | |
1299 | target label's address. Otherwise, value is the length of a format string | |
1300 | and ASSIGN_ADDR is its address. */ | |
1301 | if (TREE_STATIC (length)) | |
35bf1214 | 1302 | DECL_INITIAL (length) = build_int_cst (gfc_charlen_type_node, -2); |
c8f1568f | 1303 | else |
1304 | gfc_defer_symbol_init (sym); | |
1305 | ||
1306 | GFC_DECL_STRING_LEN (decl) = length; | |
1307 | GFC_DECL_ASSIGN_ADDR (decl) = addr; | |
1308 | } | |
4ee9c684 | 1309 | |
36b0a1b0 | 1310 | |
1311 | static tree | |
1312 | add_attributes_to_decl (symbol_attribute sym_attr, tree list) | |
1313 | { | |
1314 | unsigned id; | |
1315 | tree attr; | |
1316 | ||
1317 | for (id = 0; id < EXT_ATTR_NUM; id++) | |
1318 | if (sym_attr.ext_attr & (1 << id)) | |
1319 | { | |
1320 | attr = build_tree_list ( | |
1321 | get_identifier (ext_attr_list[id].middle_end_name), | |
1322 | NULL_TREE); | |
1323 | list = chainon (list, attr); | |
1324 | } | |
1325 | ||
691447ab | 1326 | if (sym_attr.omp_declare_target) |
1327 | list = tree_cons (get_identifier ("omp declare target"), | |
1328 | NULL_TREE, list); | |
1329 | ||
7c1a9598 | 1330 | if (sym_attr.oacc_function) |
1331 | { | |
1332 | tree dims = NULL_TREE; | |
1333 | int ix; | |
1334 | int level = sym_attr.oacc_function - 1; | |
1335 | ||
1336 | for (ix = GOMP_DIM_MAX; ix--;) | |
1337 | dims = tree_cons (build_int_cst (boolean_type_node, ix >= level), | |
1338 | integer_zero_node, dims); | |
1339 | ||
1340 | list = tree_cons (get_identifier ("oacc function"), | |
1341 | dims, list); | |
1342 | } | |
1343 | ||
36b0a1b0 | 1344 | return list; |
1345 | } | |
1346 | ||
1347 | ||
802532b9 | 1348 | static void build_function_decl (gfc_symbol * sym, bool global); |
1349 | ||
1350 | ||
4ee9c684 | 1351 | /* Return the decl for a gfc_symbol, create it if it doesn't already |
1352 | exist. */ | |
1353 | ||
1354 | tree | |
1355 | gfc_get_symbol_decl (gfc_symbol * sym) | |
1356 | { | |
1357 | tree decl; | |
1358 | tree length = NULL_TREE; | |
36b0a1b0 | 1359 | tree attributes; |
4ee9c684 | 1360 | int byref; |
cd2c99b8 | 1361 | bool intrinsic_array_parameter = false; |
8b9eb27e | 1362 | bool fun_or_res; |
4ee9c684 | 1363 | |
0b5dc8b5 | 1364 | gcc_assert (sym->attr.referenced |
9e45357a | 1365 | || sym->attr.flavor == FL_PROCEDURE |
1366 | || sym->attr.use_assoc | |
4b8eb6ca | 1367 | || sym->attr.used_in_submodule |
9e45357a | 1368 | || sym->ns->proc_name->attr.if_source == IFSRC_IFBODY |
1369 | || (sym->module && sym->attr.if_source != IFSRC_DECL | |
1370 | && sym->backend_decl)); | |
4ee9c684 | 1371 | |
ff70e443 | 1372 | if (sym->ns && sym->ns->proc_name && sym->ns->proc_name->attr.function) |
4ee9c684 | 1373 | byref = gfc_return_by_reference (sym->ns->proc_name); |
1374 | else | |
1375 | byref = 0; | |
1376 | ||
09c509ed | 1377 | /* Make sure that the vtab for the declared type is completed. */ |
1378 | if (sym->ts.type == BT_CLASS) | |
1379 | { | |
50b4b37b | 1380 | gfc_component *c = CLASS_DATA (sym); |
09c509ed | 1381 | if (!c->ts.u.derived->backend_decl) |
eab71f19 | 1382 | { |
1383 | gfc_find_derived_vtab (c->ts.u.derived); | |
1384 | gfc_get_derived_type (sym->ts.u.derived); | |
1385 | } | |
09c509ed | 1386 | } |
1387 | ||
617125a6 | 1388 | /* All deferred character length procedures need to retain the backend |
1389 | decl, which is a pointer to the character length in the caller's | |
1390 | namespace and to declare a local character length. */ | |
1391 | if (!byref && sym->attr.function | |
1392 | && sym->ts.type == BT_CHARACTER | |
1393 | && sym->ts.deferred | |
1394 | && sym->ts.u.cl->passed_length == NULL | |
1395 | && sym->ts.u.cl->backend_decl | |
1396 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
1397 | { | |
1398 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
ddcfeaf1 | 1399 | gcc_assert (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))); |
1400 | sym->ts.u.cl->backend_decl = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
617125a6 | 1401 | } |
1402 | ||
8b9eb27e | 1403 | fun_or_res = byref && (sym->attr.result |
1404 | || (sym->attr.function && sym->ts.deferred)); | |
1405 | if ((sym->attr.dummy && ! sym->attr.function) || fun_or_res) | |
4ee9c684 | 1406 | { |
1407 | /* Return via extra parameter. */ | |
1408 | if (sym->attr.result && byref | |
1409 | && !sym->backend_decl) | |
1410 | { | |
1411 | sym->backend_decl = | |
1412 | DECL_ARGUMENTS (sym->ns->proc_name->backend_decl); | |
c6871095 | 1413 | /* For entry master function skip over the __entry |
1414 | argument. */ | |
1415 | if (sym->ns->proc_name->attr.entry_master) | |
1767a056 | 1416 | sym->backend_decl = DECL_CHAIN (sym->backend_decl); |
4ee9c684 | 1417 | } |
1418 | ||
1419 | /* Dummy variables should already have been created. */ | |
22d678e8 | 1420 | gcc_assert (sym->backend_decl); |
4ee9c684 | 1421 | |
1422 | /* Create a character length variable. */ | |
1423 | if (sym->ts.type == BT_CHARACTER) | |
1424 | { | |
617125a6 | 1425 | /* For a deferred dummy, make a new string length variable. */ |
1426 | if (sym->ts.deferred | |
1427 | && | |
1428 | (sym->ts.u.cl->passed_length == sym->ts.u.cl->backend_decl)) | |
1429 | sym->ts.u.cl->backend_decl = NULL_TREE; | |
1430 | ||
d1b1479f | 1431 | if (sym->ts.deferred && byref) |
617125a6 | 1432 | { |
d1b1479f | 1433 | /* The string length of a deferred char array is stored in the |
1434 | parameter at sym->ts.u.cl->backend_decl as a reference and | |
1435 | marked as a result. Exempt this variable from generating a | |
1436 | temporary for it. */ | |
1437 | if (sym->attr.result) | |
1438 | { | |
1439 | /* We need to insert a indirect ref for param decls. */ | |
1440 | if (sym->ts.u.cl->backend_decl | |
1441 | && TREE_CODE (sym->ts.u.cl->backend_decl) == PARM_DECL) | |
ddcfeaf1 | 1442 | { |
1443 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
a4731200 | 1444 | sym->ts.u.cl->backend_decl = |
d1b1479f | 1445 | build_fold_indirect_ref (sym->ts.u.cl->backend_decl); |
a4731200 | 1446 | } |
ddcfeaf1 | 1447 | } |
d1b1479f | 1448 | /* For all other parameters make sure, that they are copied so |
1449 | that the value and any modifications are local to the routine | |
1450 | by generating a temporary variable. */ | |
1451 | else if (sym->attr.function | |
1452 | && sym->ts.u.cl->passed_length == NULL | |
1453 | && sym->ts.u.cl->backend_decl) | |
1454 | { | |
1455 | sym->ts.u.cl->passed_length = sym->ts.u.cl->backend_decl; | |
ddcfeaf1 | 1456 | if (POINTER_TYPE_P (TREE_TYPE (sym->ts.u.cl->passed_length))) |
1457 | sym->ts.u.cl->backend_decl | |
1458 | = build_fold_indirect_ref (sym->ts.u.cl->backend_decl); | |
1459 | else | |
a4731200 | 1460 | sym->ts.u.cl->backend_decl = NULL_TREE; |
d1b1479f | 1461 | } |
617125a6 | 1462 | } |
1463 | ||
eeebe20b | 1464 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 1465 | length = gfc_create_string_length (sym); |
1466 | else | |
eeebe20b | 1467 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 1468 | if (TREE_CODE (length) == VAR_DECL |
16a40513 | 1469 | && DECL_FILE_SCOPE_P (length)) |
4ee9c684 | 1470 | { |
d95efb59 | 1471 | /* Add the string length to the same context as the symbol. */ |
1472 | if (DECL_CONTEXT (sym->backend_decl) == current_function_decl) | |
1473 | gfc_add_decl_to_function (length); | |
1474 | else | |
1475 | gfc_add_decl_to_parent_function (length); | |
1476 | ||
1477 | gcc_assert (DECL_CONTEXT (sym->backend_decl) == | |
1478 | DECL_CONTEXT (length)); | |
1479 | ||
d4163395 | 1480 | gfc_defer_symbol_init (sym); |
e8ff3944 | 1481 | } |
4ee9c684 | 1482 | } |
1483 | ||
1484 | /* Use a copy of the descriptor for dummy arrays. */ | |
7a777e43 | 1485 | if ((sym->attr.dimension || sym->attr.codimension) |
1486 | && !TREE_USED (sym->backend_decl)) | |
4ee9c684 | 1487 | { |
d95efb59 | 1488 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); |
1489 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1490 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1491 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1492 | sym->backend_decl = decl; | |
4ee9c684 | 1493 | } |
1494 | ||
c6793847 | 1495 | /* Returning the descriptor for dummy class arrays is hazardous, because |
1496 | some caller is expecting an expression to apply the component refs to. | |
1497 | Therefore the descriptor is only created and stored in | |
1498 | sym->backend_decl's GFC_DECL_SAVED_DESCRIPTOR. The caller is then | |
1499 | responsible to extract it from there, when the descriptor is | |
1500 | desired. */ | |
1501 | if (IS_CLASS_ARRAY (sym) | |
1502 | && (!DECL_LANG_SPECIFIC (sym->backend_decl) | |
1503 | || !GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl))) | |
1504 | { | |
1505 | decl = gfc_build_dummy_array_decl (sym, sym->backend_decl); | |
1506 | /* Prevent the dummy from being detected as unused if it is copied. */ | |
1507 | if (sym->backend_decl != NULL && decl != sym->backend_decl) | |
1508 | DECL_ARTIFICIAL (sym->backend_decl) = 1; | |
1509 | sym->backend_decl = decl; | |
1510 | } | |
1511 | ||
4ee9c684 | 1512 | TREE_USED (sym->backend_decl) = 1; |
c8f1568f | 1513 | if (sym->attr.assign && GFC_DECL_ASSIGN (sym->backend_decl) == 0) |
1514 | { | |
1515 | gfc_add_assign_aux_vars (sym); | |
1516 | } | |
9579733e | 1517 | |
c6793847 | 1518 | if ((sym->attr.dimension || IS_CLASS_ARRAY (sym)) |
9579733e | 1519 | && DECL_LANG_SPECIFIC (sym->backend_decl) |
1520 | && GFC_DECL_SAVED_DESCRIPTOR (sym->backend_decl) | |
1521 | && DECL_CONTEXT (sym->backend_decl) != current_function_decl) | |
1522 | gfc_nonlocal_dummy_array_decl (sym); | |
1523 | ||
fd23cc08 | 1524 | if (sym->ts.type == BT_CLASS && sym->backend_decl) |
1525 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1526 | ||
fd23cc08 | 1527 | return sym->backend_decl; |
4ee9c684 | 1528 | } |
1529 | ||
1530 | if (sym->backend_decl) | |
1531 | return sym->backend_decl; | |
1532 | ||
a25debd0 | 1533 | /* Special case for array-valued named constants from intrinsic |
1534 | procedures; those are inlined. */ | |
d566c3e0 | 1535 | if (sym->attr.use_assoc && sym->attr.flavor == FL_PARAMETER |
1536 | && (sym->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
1537 | || sym->from_intmod == INTMOD_ISO_C_BINDING)) | |
a25debd0 | 1538 | intrinsic_array_parameter = true; |
1539 | ||
044bbd71 | 1540 | /* If use associated compilation, use the module |
094bca96 | 1541 | declaration. */ |
044bbd71 | 1542 | if ((sym->attr.flavor == FL_VARIABLE |
1543 | || sym->attr.flavor == FL_PARAMETER) | |
fe9d2f5a | 1544 | && (sym->attr.use_assoc || sym->attr.used_in_submodule) |
044bbd71 | 1545 | && !intrinsic_array_parameter |
1546 | && sym->module | |
1547 | && gfc_get_module_backend_decl (sym)) | |
fd23cc08 | 1548 | { |
1549 | if (sym->ts.type == BT_CLASS && sym->backend_decl) | |
1550 | GFC_DECL_CLASS(sym->backend_decl) = 1; | |
1551 | return sym->backend_decl; | |
1552 | } | |
7ea64434 | 1553 | |
4ee9c684 | 1554 | if (sym->attr.flavor == FL_PROCEDURE) |
1555 | { | |
77d080ca | 1556 | /* Catch functions. Only used for actual parameters, |
802532b9 | 1557 | procedure pointers and procptr initialization targets. */ |
77d080ca | 1558 | if (sym->attr.use_assoc || sym->attr.intrinsic |
1559 | || sym->attr.if_source != IFSRC_DECL) | |
802532b9 | 1560 | { |
1561 | decl = gfc_get_extern_function_decl (sym); | |
1562 | gfc_set_decl_location (decl, &sym->declared_at); | |
1563 | } | |
1564 | else | |
1565 | { | |
1566 | if (!sym->backend_decl) | |
1567 | build_function_decl (sym, false); | |
1568 | decl = sym->backend_decl; | |
1569 | } | |
4ee9c684 | 1570 | return decl; |
1571 | } | |
1572 | ||
1573 | if (sym->attr.intrinsic) | |
382ad5c3 | 1574 | gfc_internal_error ("intrinsic variable which isn't a procedure"); |
4ee9c684 | 1575 | |
1576 | /* Create string length decl first so that they can be used in the | |
c3639856 | 1577 | type declaration. For associate names, the target character |
1578 | length is used. Set 'length' to a constant so that if the | |
1579 | string lenght is a variable, it is not finished a second time. */ | |
4ee9c684 | 1580 | if (sym->ts.type == BT_CHARACTER) |
c3639856 | 1581 | { |
1582 | if (sym->attr.associate_var | |
1583 | && sym->ts.u.cl->backend_decl | |
1584 | && TREE_CODE (sym->ts.u.cl->backend_decl) == VAR_DECL) | |
1585 | length = gfc_index_zero_node; | |
1586 | else | |
1587 | length = gfc_create_string_length (sym); | |
1588 | } | |
4ee9c684 | 1589 | |
1590 | /* Create the decl for the variable. */ | |
e60a6f7b | 1591 | decl = build_decl (sym->declared_at.lb->location, |
1592 | VAR_DECL, gfc_sym_identifier (sym), gfc_sym_type (sym)); | |
b31f705b | 1593 | |
1236e28b | 1594 | /* Add attributes to variables. Functions are handled elsewhere. */ |
1595 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); | |
1596 | decl_attributes (&decl, attributes, 0); | |
1597 | ||
f888a3fb | 1598 | /* Symbols from modules should have their assembler names mangled. |
4ee9c684 | 1599 | This is done here rather than in gfc_finish_var_decl because it |
1600 | is different for string length variables. */ | |
4f0fae8e | 1601 | if (sym->module) |
df4d540f | 1602 | { |
1236e28b | 1603 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); |
cd2c99b8 | 1604 | if (sym->attr.use_assoc && !intrinsic_array_parameter) |
df4d540f | 1605 | DECL_IGNORED_P (decl) = 1; |
1606 | } | |
4ee9c684 | 1607 | |
bc5663df | 1608 | if (sym->attr.select_type_temporary) |
1609 | { | |
1610 | DECL_ARTIFICIAL (decl) = 1; | |
1611 | DECL_IGNORED_P (decl) = 1; | |
1612 | } | |
1613 | ||
7a777e43 | 1614 | if (sym->attr.dimension || sym->attr.codimension) |
4ee9c684 | 1615 | { |
1616 | /* Create variables to hold the non-constant bits of array info. */ | |
1617 | gfc_build_qualified_array (decl, sym); | |
1618 | ||
b3c3927c | 1619 | if (sym->attr.contiguous |
1620 | || ((sym->attr.allocatable || !sym->attr.dummy) && !sym->attr.pointer)) | |
4ee9c684 | 1621 | GFC_DECL_PACKED_ARRAY (decl) = 1; |
1622 | } | |
1623 | ||
0a96a7cc | 1624 | /* Remember this variable for allocation/cleanup. */ |
7c7db7f6 | 1625 | if (sym->attr.dimension || sym->attr.allocatable || sym->attr.codimension |
0a96a7cc | 1626 | || (sym->ts.type == BT_CLASS && |
50b4b37b | 1627 | (CLASS_DATA (sym)->attr.dimension |
1628 | || CLASS_DATA (sym)->attr.allocatable)) | |
6b3ceb4e | 1629 | || (sym->ts.type == BT_DERIVED |
1630 | && (sym->ts.u.derived->attr.alloc_comp | |
1631 | || (!sym->attr.pointer && !sym->attr.artificial && !sym->attr.save | |
1632 | && !sym->ns->proc_name->attr.is_main_program | |
1633 | && gfc_is_finalizable (sym->ts.u.derived, NULL)))) | |
0a96a7cc | 1634 | /* This applies a derived type default initializer. */ |
1635 | || (sym->ts.type == BT_DERIVED | |
1636 | && sym->attr.save == SAVE_NONE | |
1637 | && !sym->attr.data | |
1638 | && !sym->attr.allocatable | |
1639 | && (sym->value && !sym->ns->proc_name->attr.is_main_program) | |
cd2c99b8 | 1640 | && !(sym->attr.use_assoc && !intrinsic_array_parameter))) |
f0d4969f | 1641 | gfc_defer_symbol_init (sym); |
2294b616 | 1642 | |
4ee9c684 | 1643 | gfc_finish_var_decl (decl, sym); |
1644 | ||
bda1f152 | 1645 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 1646 | { |
4ee9c684 | 1647 | /* Character variables need special handling. */ |
1648 | gfc_allocate_lang_decl (decl); | |
1649 | ||
c3639856 | 1650 | /* Associate names can use the hidden string length variable |
1651 | of their associated target. */ | |
bda1f152 | 1652 | if (TREE_CODE (length) != INTEGER_CST) |
4ee9c684 | 1653 | { |
4ee9c684 | 1654 | gfc_finish_var_decl (length, sym); |
22d678e8 | 1655 | gcc_assert (!sym->value); |
4ee9c684 | 1656 | } |
4ee9c684 | 1657 | } |
1033248c | 1658 | else if (sym->attr.subref_array_pointer) |
1659 | { | |
1660 | /* We need the span for these beasts. */ | |
1661 | gfc_allocate_lang_decl (decl); | |
1662 | } | |
1663 | ||
1664 | if (sym->attr.subref_array_pointer) | |
1665 | { | |
1666 | tree span; | |
1667 | GFC_DECL_SUBREF_ARRAY_P (decl) = 1; | |
e60a6f7b | 1668 | span = build_decl (input_location, |
1669 | VAR_DECL, create_tmp_var_name ("span"), | |
1033248c | 1670 | gfc_array_index_type); |
1671 | gfc_finish_var_decl (span, sym); | |
6180d82a | 1672 | TREE_STATIC (span) = TREE_STATIC (decl); |
1673 | DECL_ARTIFICIAL (span) = 1; | |
1033248c | 1674 | |
1675 | GFC_DECL_SPAN (decl) = span; | |
6180d82a | 1676 | GFC_TYPE_ARRAY_SPAN (TREE_TYPE (decl)) = span; |
1033248c | 1677 | } |
1678 | ||
fd23cc08 | 1679 | if (sym->ts.type == BT_CLASS) |
1680 | GFC_DECL_CLASS(decl) = 1; | |
1681 | ||
4ee9c684 | 1682 | sym->backend_decl = decl; |
1683 | ||
c8f1568f | 1684 | if (sym->attr.assign) |
21ebda4d | 1685 | gfc_add_assign_aux_vars (sym); |
c8f1568f | 1686 | |
cd2c99b8 | 1687 | if (intrinsic_array_parameter) |
1688 | { | |
1689 | TREE_STATIC (decl) = 1; | |
1690 | DECL_EXTERNAL (decl) = 0; | |
1691 | } | |
1692 | ||
1693 | if (TREE_STATIC (decl) | |
1694 | && !(sym->attr.use_assoc && !intrinsic_array_parameter) | |
a545a8f8 | 1695 | && (sym->attr.save || sym->ns->proc_name->attr.is_main_program |
eb106faf | 1696 | || flag_max_stack_var_size == 0 |
a961ca30 | 1697 | || sym->attr.data || sym->ns->proc_name->attr.flavor == FL_MODULE) |
4fe73152 | 1698 | && (flag_coarray != GFC_FCOARRAY_LIB |
0d3bb1de | 1699 | || !sym->attr.codimension || sym->attr.allocatable)) |
a545a8f8 | 1700 | { |
1701 | /* Add static initializer. For procedures, it is only needed if | |
1702 | SAVE is specified otherwise they need to be reinitialized | |
1703 | every time the procedure is entered. The TREE_STATIC is | |
1704 | in this case due to -fmax-stack-var-size=. */ | |
2e42c60f | 1705 | |
bda1f152 | 1706 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
2e42c60f | 1707 | TREE_TYPE (decl), sym->attr.dimension |
1708 | || (sym->attr.codimension | |
1709 | && sym->attr.allocatable), | |
1710 | sym->attr.pointer || sym->attr.allocatable | |
1711 | || sym->ts.type == BT_CLASS, | |
1712 | sym->attr.proc_pointer); | |
bda1f152 | 1713 | } |
1714 | ||
9579733e | 1715 | if (!TREE_STATIC (decl) |
1716 | && POINTER_TYPE_P (TREE_TYPE (decl)) | |
1717 | && !sym->attr.pointer | |
1718 | && !sym->attr.allocatable | |
bc5663df | 1719 | && !sym->attr.proc_pointer |
1720 | && !sym->attr.select_type_temporary) | |
9579733e | 1721 | DECL_BY_REFERENCE (decl) = 1; |
1722 | ||
cf5f881f | 1723 | if (sym->attr.associate_var) |
1724 | GFC_DECL_ASSOCIATE_VAR_P (decl) = 1; | |
1725 | ||
ebad7c3e | 1726 | if (sym->attr.vtab |
1727 | || (sym->name[0] == '_' && strncmp ("__def_init", sym->name, 10) == 0)) | |
4c197fd0 | 1728 | TREE_READONLY (decl) = 1; |
ebad7c3e | 1729 | |
4ee9c684 | 1730 | return decl; |
1731 | } | |
1732 | ||
1733 | ||
dbe60343 | 1734 | /* Substitute a temporary variable in place of the real one. */ |
1735 | ||
1736 | void | |
1737 | gfc_shadow_sym (gfc_symbol * sym, tree decl, gfc_saved_var * save) | |
1738 | { | |
1739 | save->attr = sym->attr; | |
1740 | save->decl = sym->backend_decl; | |
1741 | ||
1742 | gfc_clear_attr (&sym->attr); | |
1743 | sym->attr.referenced = 1; | |
1744 | sym->attr.flavor = FL_VARIABLE; | |
1745 | ||
1746 | sym->backend_decl = decl; | |
1747 | } | |
1748 | ||
1749 | ||
1750 | /* Restore the original variable. */ | |
1751 | ||
1752 | void | |
1753 | gfc_restore_sym (gfc_symbol * sym, gfc_saved_var * save) | |
1754 | { | |
1755 | sym->attr = save->attr; | |
1756 | sym->backend_decl = save->decl; | |
1757 | } | |
1758 | ||
1759 | ||
cad0ddcf | 1760 | /* Declare a procedure pointer. */ |
1761 | ||
1762 | static tree | |
1763 | get_proc_pointer_decl (gfc_symbol *sym) | |
1764 | { | |
1765 | tree decl; | |
36b0a1b0 | 1766 | tree attributes; |
cad0ddcf | 1767 | |
1768 | decl = sym->backend_decl; | |
1769 | if (decl) | |
1770 | return decl; | |
1771 | ||
e60a6f7b | 1772 | decl = build_decl (input_location, |
1773 | VAR_DECL, get_identifier (sym->name), | |
cad0ddcf | 1774 | build_pointer_type (gfc_get_function_type (sym))); |
1775 | ||
ea6f8461 | 1776 | if (sym->module) |
1777 | { | |
1778 | /* Apply name mangling. */ | |
1779 | gfc_set_decl_assembler_name (decl, gfc_sym_mangled_identifier (sym)); | |
1780 | if (sym->attr.use_assoc) | |
1781 | DECL_IGNORED_P (decl) = 1; | |
1782 | } | |
a90fe829 | 1783 | |
e72f979a | 1784 | if ((sym->ns->proc_name |
1785 | && sym->ns->proc_name->backend_decl == current_function_decl) | |
cad0ddcf | 1786 | || sym->attr.contained) |
1787 | gfc_add_decl_to_function (decl); | |
cf269acc | 1788 | else if (sym->ns->proc_name->attr.flavor != FL_MODULE) |
cad0ddcf | 1789 | gfc_add_decl_to_parent_function (decl); |
1790 | ||
1791 | sym->backend_decl = decl; | |
1792 | ||
cf269acc | 1793 | /* If a variable is USE associated, it's always external. */ |
1794 | if (sym->attr.use_assoc) | |
1795 | { | |
1796 | DECL_EXTERNAL (decl) = 1; | |
1797 | TREE_PUBLIC (decl) = 1; | |
1798 | } | |
1799 | else if (sym->module && sym->ns->proc_name->attr.flavor == FL_MODULE) | |
1800 | { | |
1801 | /* This is the declaration of a module variable. */ | |
c8ddfd5d | 1802 | TREE_PUBLIC (decl) = 1; |
1803 | if (sym->attr.access == ACCESS_PRIVATE && !sym->attr.public_used) | |
1804 | { | |
1805 | DECL_VISIBILITY (decl) = VISIBILITY_HIDDEN; | |
1806 | DECL_VISIBILITY_SPECIFIED (decl) = true; | |
1807 | } | |
cf269acc | 1808 | TREE_STATIC (decl) = 1; |
1809 | } | |
1810 | ||
cad0ddcf | 1811 | if (!sym->attr.use_assoc |
1812 | && (sym->attr.save != SAVE_NONE || sym->attr.data | |
1813 | || (sym->value && sym->ns->proc_name->attr.is_main_program))) | |
1814 | TREE_STATIC (decl) = 1; | |
1815 | ||
1816 | if (TREE_STATIC (decl) && sym->value) | |
1817 | { | |
1818 | /* Add static initializer. */ | |
1819 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, | |
802532b9 | 1820 | TREE_TYPE (decl), |
1821 | sym->attr.dimension, | |
1822 | false, true); | |
cad0ddcf | 1823 | } |
1824 | ||
8fb1768c | 1825 | /* Handle threadprivate procedure pointers. */ |
1826 | if (sym->attr.threadprivate | |
1827 | && (TREE_STATIC (decl) || DECL_EXTERNAL (decl))) | |
5e68df57 | 1828 | set_decl_tls_model (decl, decl_default_tls_model (decl)); |
8fb1768c | 1829 | |
36b0a1b0 | 1830 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
1831 | decl_attributes (&decl, attributes, 0); | |
1832 | ||
cad0ddcf | 1833 | return decl; |
1834 | } | |
1835 | ||
1836 | ||
4ee9c684 | 1837 | /* Get a basic decl for an external function. */ |
1838 | ||
1839 | tree | |
1840 | gfc_get_extern_function_decl (gfc_symbol * sym) | |
1841 | { | |
1842 | tree type; | |
1843 | tree fndecl; | |
36b0a1b0 | 1844 | tree attributes; |
4ee9c684 | 1845 | gfc_expr e; |
1846 | gfc_intrinsic_sym *isym; | |
1847 | gfc_expr argexpr; | |
17000b91 | 1848 | char s[GFC_MAX_SYMBOL_LEN + 23]; /* "_gfortran_f2c_specific" and '\0'. */ |
4ee9c684 | 1849 | tree name; |
1850 | tree mangled_name; | |
83aeedb9 | 1851 | gfc_gsymbol *gsym; |
4ee9c684 | 1852 | |
1853 | if (sym->backend_decl) | |
1854 | return sym->backend_decl; | |
1855 | ||
1b716045 | 1856 | /* We should never be creating external decls for alternate entry points. |
1857 | The procedure may be an alternate entry point, but we don't want/need | |
1858 | to know that. */ | |
22d678e8 | 1859 | gcc_assert (!(sym->attr.entry || sym->attr.entry_master)); |
1b716045 | 1860 | |
cad0ddcf | 1861 | if (sym->attr.proc_pointer) |
1862 | return get_proc_pointer_decl (sym); | |
1863 | ||
83aeedb9 | 1864 | /* See if this is an external procedure from the same file. If so, |
1865 | return the backend_decl. */ | |
da5c730d | 1866 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->binding_label |
1867 | ? sym->binding_label : sym->name); | |
83aeedb9 | 1868 | |
c8b913ab | 1869 | if (gsym && !gsym->defined) |
1870 | gsym = NULL; | |
1871 | ||
1872 | /* This can happen because of C binding. */ | |
1873 | if (gsym && gsym->ns && gsym->ns->proc_name | |
1874 | && gsym->ns->proc_name->attr.flavor == FL_MODULE) | |
1875 | goto module_sym; | |
1876 | ||
044bbd71 | 1877 | if ((!sym->attr.use_assoc || sym->attr.if_source != IFSRC_DECL) |
1878 | && !sym->backend_decl | |
1879 | && gsym && gsym->ns | |
1880 | && ((gsym->type == GSYM_SUBROUTINE) || (gsym->type == GSYM_FUNCTION)) | |
1881 | && (gsym->ns->proc_name->backend_decl || !sym->attr.intrinsic)) | |
83aeedb9 | 1882 | { |
d896f9b3 | 1883 | if (!gsym->ns->proc_name->backend_decl) |
1884 | { | |
1885 | /* By construction, the external function cannot be | |
1886 | a contained procedure. */ | |
1887 | locus old_loc; | |
d896f9b3 | 1888 | |
4671339c | 1889 | gfc_save_backend_locus (&old_loc); |
9078126c | 1890 | push_cfun (NULL); |
d896f9b3 | 1891 | |
1892 | gfc_create_function_decl (gsym->ns, true); | |
1893 | ||
1894 | pop_cfun (); | |
4671339c | 1895 | gfc_restore_backend_locus (&old_loc); |
d896f9b3 | 1896 | } |
1897 | ||
83aeedb9 | 1898 | /* If the namespace has entries, the proc_name is the |
1899 | entry master. Find the entry and use its backend_decl. | |
1900 | otherwise, use the proc_name backend_decl. */ | |
1901 | if (gsym->ns->entries) | |
1902 | { | |
1903 | gfc_entry_list *entry = gsym->ns->entries; | |
1904 | ||
1905 | for (; entry; entry = entry->next) | |
1906 | { | |
1907 | if (strcmp (gsym->name, entry->sym->name) == 0) | |
1908 | { | |
1909 | sym->backend_decl = entry->sym->backend_decl; | |
1910 | break; | |
1911 | } | |
1912 | } | |
1913 | } | |
1914 | else | |
40c74b02 | 1915 | sym->backend_decl = gsym->ns->proc_name->backend_decl; |
83aeedb9 | 1916 | |
1917 | if (sym->backend_decl) | |
40c74b02 | 1918 | { |
1919 | /* Avoid problems of double deallocation of the backend declaration | |
1920 | later in gfc_trans_use_stmts; cf. PR 45087. */ | |
1921 | if (sym->attr.if_source != IFSRC_DECL && sym->attr.use_assoc) | |
1922 | sym->attr.use_assoc = 0; | |
1923 | ||
1924 | return sym->backend_decl; | |
1925 | } | |
83aeedb9 | 1926 | } |
1927 | ||
7ea64434 | 1928 | /* See if this is a module procedure from the same file. If so, |
1929 | return the backend_decl. */ | |
1930 | if (sym->module) | |
1931 | gsym = gfc_find_gsymbol (gfc_gsym_root, sym->module); | |
1932 | ||
c8b913ab | 1933 | module_sym: |
1934 | if (gsym && gsym->ns | |
1935 | && (gsym->type == GSYM_MODULE | |
1936 | || (gsym->ns->proc_name && gsym->ns->proc_name->attr.flavor == FL_MODULE))) | |
7ea64434 | 1937 | { |
1938 | gfc_symbol *s; | |
1939 | ||
1940 | s = NULL; | |
c8b913ab | 1941 | if (gsym->type == GSYM_MODULE) |
1942 | gfc_find_symbol (sym->name, gsym->ns, 0, &s); | |
1943 | else | |
1944 | gfc_find_symbol (gsym->sym_name, gsym->ns, 0, &s); | |
1945 | ||
7ea64434 | 1946 | if (s && s->backend_decl) |
1947 | { | |
85ec2f13 | 1948 | if (sym->ts.type == BT_DERIVED || sym->ts.type == BT_CLASS) |
1949 | gfc_copy_dt_decls_ifequal (s->ts.u.derived, sym->ts.u.derived, | |
1950 | true); | |
1951 | else if (sym->ts.type == BT_CHARACTER) | |
1952 | sym->ts.u.cl->backend_decl = s->ts.u.cl->backend_decl; | |
7ea64434 | 1953 | sym->backend_decl = s->backend_decl; |
1954 | return sym->backend_decl; | |
1955 | } | |
1956 | } | |
1957 | ||
4ee9c684 | 1958 | if (sym->attr.intrinsic) |
1959 | { | |
1960 | /* Call the resolution function to get the actual name. This is | |
1961 | a nasty hack which relies on the resolution functions only looking | |
1962 | at the first argument. We pass NULL for the second argument | |
1963 | otherwise things like AINT get confused. */ | |
1964 | isym = gfc_find_function (sym->name); | |
22d678e8 | 1965 | gcc_assert (isym->resolve.f0 != NULL); |
4ee9c684 | 1966 | |
1967 | memset (&e, 0, sizeof (e)); | |
1968 | e.expr_type = EXPR_FUNCTION; | |
1969 | ||
1970 | memset (&argexpr, 0, sizeof (argexpr)); | |
22d678e8 | 1971 | gcc_assert (isym->formal); |
4ee9c684 | 1972 | argexpr.ts = isym->formal->ts; |
1973 | ||
1974 | if (isym->formal->next == NULL) | |
1975 | isym->resolve.f1 (&e, &argexpr); | |
1976 | else | |
1977 | { | |
37e0271a | 1978 | if (isym->formal->next->next == NULL) |
1979 | isym->resolve.f2 (&e, &argexpr, NULL); | |
1980 | else | |
1981 | { | |
7fe55cc9 | 1982 | if (isym->formal->next->next->next == NULL) |
1983 | isym->resolve.f3 (&e, &argexpr, NULL, NULL); | |
1984 | else | |
1985 | { | |
1986 | /* All specific intrinsics take less than 5 arguments. */ | |
1987 | gcc_assert (isym->formal->next->next->next->next == NULL); | |
1988 | isym->resolve.f4 (&e, &argexpr, NULL, NULL, NULL); | |
1989 | } | |
37e0271a | 1990 | } |
4ee9c684 | 1991 | } |
bdaed7d2 | 1992 | |
829d7a08 | 1993 | if (flag_f2c |
bdaed7d2 | 1994 | && ((e.ts.type == BT_REAL && e.ts.kind == gfc_default_real_kind) |
1995 | || e.ts.type == BT_COMPLEX)) | |
1996 | { | |
1997 | /* Specific which needs a different implementation if f2c | |
1998 | calling conventions are used. */ | |
17000b91 | 1999 | sprintf (s, "_gfortran_f2c_specific%s", e.value.function.name); |
bdaed7d2 | 2000 | } |
2001 | else | |
17000b91 | 2002 | sprintf (s, "_gfortran_specific%s", e.value.function.name); |
bdaed7d2 | 2003 | |
4ee9c684 | 2004 | name = get_identifier (s); |
2005 | mangled_name = name; | |
2006 | } | |
2007 | else | |
2008 | { | |
2009 | name = gfc_sym_identifier (sym); | |
2010 | mangled_name = gfc_sym_mangled_function_id (sym); | |
2011 | } | |
2012 | ||
2013 | type = gfc_get_function_type (sym); | |
e60a6f7b | 2014 | fndecl = build_decl (input_location, |
2015 | FUNCTION_DECL, name, type); | |
4ee9c684 | 2016 | |
e27454ee | 2017 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2018 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 2019 | the opposite of declaring a function as static in C). */ |
e27454ee | 2020 | DECL_EXTERNAL (fndecl) = 1; |
2021 | TREE_PUBLIC (fndecl) = 1; | |
2022 | ||
1236e28b | 2023 | attributes = add_attributes_to_decl (sym->attr, NULL_TREE); |
2024 | decl_attributes (&fndecl, attributes, 0); | |
2025 | ||
2026 | gfc_set_decl_assembler_name (fndecl, mangled_name); | |
4ee9c684 | 2027 | |
2028 | /* Set the context of this decl. */ | |
2029 | if (0 && sym->ns && sym->ns->proc_name) | |
2030 | { | |
2031 | /* TODO: Add external decls to the appropriate scope. */ | |
2032 | DECL_CONTEXT (fndecl) = sym->ns->proc_name->backend_decl; | |
2033 | } | |
2034 | else | |
2035 | { | |
f888a3fb | 2036 | /* Global declaration, e.g. intrinsic subroutine. */ |
4ee9c684 | 2037 | DECL_CONTEXT (fndecl) = NULL_TREE; |
2038 | } | |
2039 | ||
4ee9c684 | 2040 | /* Set attributes for PURE functions. A call to PURE function in the |
2041 | Fortran 95 sense is both pure and without side effects in the C | |
2042 | sense. */ | |
bead0399 | 2043 | if (sym->attr.pure || sym->attr.implicit_pure) |
4ee9c684 | 2044 | { |
4d4b9f0e | 2045 | if (sym->attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2046 | DECL_PURE_P (fndecl) = 1; |
be393645 | 2047 | /* TODO: check if pure SUBROUTINEs don't have INTENT(OUT) |
2048 | parameters and don't use alternate returns (is this | |
2049 | allowed?). In that case, calls to them are meaningless, and | |
1b716045 | 2050 | can be optimized away. See also in build_function_decl(). */ |
be393645 | 2051 | TREE_SIDE_EFFECTS (fndecl) = 0; |
4ee9c684 | 2052 | } |
2053 | ||
6e27d773 | 2054 | /* Mark non-returning functions. */ |
2055 | if (sym->attr.noreturn) | |
2056 | TREE_THIS_VOLATILE(fndecl) = 1; | |
2057 | ||
4ee9c684 | 2058 | sym->backend_decl = fndecl; |
2059 | ||
2060 | if (DECL_CONTEXT (fndecl) == NULL_TREE) | |
2061 | pushdecl_top_level (fndecl); | |
2062 | ||
15b28553 | 2063 | if (sym->formal_ns |
2064 | && sym->formal_ns->proc_name == sym | |
2065 | && sym->formal_ns->omp_declare_simd) | |
2066 | gfc_trans_omp_declare_simd (sym->formal_ns); | |
2067 | ||
4ee9c684 | 2068 | return fndecl; |
2069 | } | |
2070 | ||
2071 | ||
2072 | /* Create a declaration for a procedure. For external functions (in the C | |
1b716045 | 2073 | sense) use gfc_get_extern_function_decl. HAS_ENTRIES is true if this is |
2074 | a master function with alternate entry points. */ | |
4ee9c684 | 2075 | |
1b716045 | 2076 | static void |
d896f9b3 | 2077 | build_function_decl (gfc_symbol * sym, bool global) |
4ee9c684 | 2078 | { |
36b0a1b0 | 2079 | tree fndecl, type, attributes; |
4ee9c684 | 2080 | symbol_attribute attr; |
1b716045 | 2081 | tree result_decl; |
4ee9c684 | 2082 | gfc_formal_arglist *f; |
2083 | ||
76e207a9 | 2084 | bool module_procedure = sym->attr.module_procedure |
2085 | && sym->ns | |
2086 | && sym->ns->proc_name | |
2087 | && sym->ns->proc_name->attr.flavor == FL_MODULE; | |
2088 | ||
2089 | gcc_assert (!sym->attr.external || module_procedure); | |
4ee9c684 | 2090 | |
802532b9 | 2091 | if (sym->backend_decl) |
2092 | return; | |
2093 | ||
b31f705b | 2094 | /* Set the line and filename. sym->declared_at seems to point to the |
2095 | last statement for subroutines, but it'll do for now. */ | |
2096 | gfc_set_backend_locus (&sym->declared_at); | |
2097 | ||
4ee9c684 | 2098 | /* Allow only one nesting level. Allow public declarations. */ |
22d678e8 | 2099 | gcc_assert (current_function_decl == NULL_TREE |
16a40513 | 2100 | || DECL_FILE_SCOPE_P (current_function_decl) |
2101 | || (TREE_CODE (DECL_CONTEXT (current_function_decl)) | |
2102 | == NAMESPACE_DECL)); | |
4ee9c684 | 2103 | |
2104 | type = gfc_get_function_type (sym); | |
e60a6f7b | 2105 | fndecl = build_decl (input_location, |
2106 | FUNCTION_DECL, gfc_sym_identifier (sym), type); | |
4ee9c684 | 2107 | |
1236e28b | 2108 | attr = sym->attr; |
2109 | ||
e27454ee | 2110 | /* Initialize DECL_EXTERNAL and TREE_PUBLIC before calling decl_attributes; |
2111 | TREE_PUBLIC specifies whether a function is globally addressable (i.e. | |
851d9296 | 2112 | the opposite of declaring a function as static in C). */ |
e27454ee | 2113 | DECL_EXTERNAL (fndecl) = 0; |
2114 | ||
7d6b5754 | 2115 | if (sym->attr.access == ACCESS_UNKNOWN && sym->module |
2116 | && (sym->ns->default_access == ACCESS_PRIVATE | |
2117 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 2118 | && flag_module_private))) |
7d6b5754 | 2119 | sym->attr.access = ACCESS_PRIVATE; |
2120 | ||
e27454ee | 2121 | if (!current_function_decl |
c5cb468c | 2122 | && !sym->attr.entry_master && !sym->attr.is_main_program |
b1f74325 | 2123 | && (sym->attr.access != ACCESS_PRIVATE || sym->binding_label |
2124 | || sym->attr.public_used)) | |
e27454ee | 2125 | TREE_PUBLIC (fndecl) = 1; |
2126 | ||
9e45357a | 2127 | if (sym->attr.referenced || sym->attr.entry_master) |
2128 | TREE_USED (fndecl) = 1; | |
2129 | ||
1236e28b | 2130 | attributes = add_attributes_to_decl (attr, NULL_TREE); |
2131 | decl_attributes (&fndecl, attributes, 0); | |
2132 | ||
4ee9c684 | 2133 | /* Figure out the return type of the declared function, and build a |
f888a3fb | 2134 | RESULT_DECL for it. If this is a subroutine with alternate |
4ee9c684 | 2135 | returns, build a RESULT_DECL for it. */ |
4ee9c684 | 2136 | result_decl = NULL_TREE; |
2137 | /* TODO: Shouldn't this just be TREE_TYPE (TREE_TYPE (fndecl)). */ | |
2138 | if (attr.function) | |
2139 | { | |
2140 | if (gfc_return_by_reference (sym)) | |
2141 | type = void_type_node; | |
2142 | else | |
2143 | { | |
2144 | if (sym->result != sym) | |
2145 | result_decl = gfc_sym_identifier (sym->result); | |
2146 | ||
2147 | type = TREE_TYPE (TREE_TYPE (fndecl)); | |
2148 | } | |
2149 | } | |
2150 | else | |
2151 | { | |
2152 | /* Look for alternate return placeholders. */ | |
2153 | int has_alternate_returns = 0; | |
6777213b | 2154 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
4ee9c684 | 2155 | { |
2156 | if (f->sym == NULL) | |
2157 | { | |
2158 | has_alternate_returns = 1; | |
2159 | break; | |
2160 | } | |
2161 | } | |
2162 | ||
2163 | if (has_alternate_returns) | |
2164 | type = integer_type_node; | |
2165 | else | |
2166 | type = void_type_node; | |
2167 | } | |
2168 | ||
e60a6f7b | 2169 | result_decl = build_decl (input_location, |
2170 | RESULT_DECL, result_decl, type); | |
540edea7 | 2171 | DECL_ARTIFICIAL (result_decl) = 1; |
2172 | DECL_IGNORED_P (result_decl) = 1; | |
4ee9c684 | 2173 | DECL_CONTEXT (result_decl) = fndecl; |
2174 | DECL_RESULT (fndecl) = result_decl; | |
2175 | ||
2176 | /* Don't call layout_decl for a RESULT_DECL. | |
f888a3fb | 2177 | layout_decl (result_decl, 0); */ |
4ee9c684 | 2178 | |
4ee9c684 | 2179 | /* TREE_STATIC means the function body is defined here. */ |
e4b2c26c | 2180 | TREE_STATIC (fndecl) = 1; |
4ee9c684 | 2181 | |
f888a3fb | 2182 | /* Set attributes for PURE functions. A call to a PURE function in the |
4ee9c684 | 2183 | Fortran 95 sense is both pure and without side effects in the C |
2184 | sense. */ | |
bead0399 | 2185 | if (attr.pure || attr.implicit_pure) |
4ee9c684 | 2186 | { |
be393645 | 2187 | /* TODO: check if a pure SUBROUTINE has no INTENT(OUT) arguments |
a0527218 | 2188 | including an alternate return. In that case it can also be |
231e961a | 2189 | marked as PURE. See also in gfc_get_extern_function_decl(). */ |
4c319962 | 2190 | if (attr.function && !gfc_return_by_reference (sym)) |
9c2a0c05 | 2191 | DECL_PURE_P (fndecl) = 1; |
4ee9c684 | 2192 | TREE_SIDE_EFFECTS (fndecl) = 0; |
2193 | } | |
2194 | ||
36b0a1b0 | 2195 | |
4ee9c684 | 2196 | /* Layout the function declaration and put it in the binding level |
2197 | of the current function. */ | |
d896f9b3 | 2198 | |
4c197fd0 | 2199 | if (global) |
d896f9b3 | 2200 | pushdecl_top_level (fndecl); |
2201 | else | |
2202 | pushdecl (fndecl); | |
1b716045 | 2203 | |
16a40513 | 2204 | /* Perform name mangling if this is a top level or module procedure. */ |
2205 | if (current_function_decl == NULL_TREE) | |
2206 | gfc_set_decl_assembler_name (fndecl, gfc_sym_mangled_function_id (sym)); | |
2207 | ||
1b716045 | 2208 | sym->backend_decl = fndecl; |
2209 | } | |
2210 | ||
2211 | ||
2212 | /* Create the DECL_ARGUMENTS for a procedure. */ | |
2213 | ||
2214 | static void | |
2215 | create_function_arglist (gfc_symbol * sym) | |
2216 | { | |
2217 | tree fndecl; | |
2218 | gfc_formal_arglist *f; | |
d4163395 | 2219 | tree typelist, hidden_typelist; |
2220 | tree arglist, hidden_arglist; | |
1b716045 | 2221 | tree type; |
2222 | tree parm; | |
2223 | ||
2224 | fndecl = sym->backend_decl; | |
2225 | ||
e4b2c26c | 2226 | /* Build formal argument list. Make sure that their TREE_CONTEXT is |
2227 | the new FUNCTION_DECL node. */ | |
e4b2c26c | 2228 | arglist = NULL_TREE; |
d4163395 | 2229 | hidden_arglist = NULL_TREE; |
e4b2c26c | 2230 | typelist = TYPE_ARG_TYPES (TREE_TYPE (fndecl)); |
1b716045 | 2231 | |
2232 | if (sym->attr.entry_master) | |
2233 | { | |
2234 | type = TREE_VALUE (typelist); | |
e60a6f7b | 2235 | parm = build_decl (input_location, |
2236 | PARM_DECL, get_identifier ("__entry"), type); | |
a90fe829 | 2237 | |
1b716045 | 2238 | DECL_CONTEXT (parm) = fndecl; |
2239 | DECL_ARG_TYPE (parm) = type; | |
2240 | TREE_READONLY (parm) = 1; | |
b9c7fce7 | 2241 | gfc_finish_decl (parm); |
d95efb59 | 2242 | DECL_ARTIFICIAL (parm) = 1; |
1b716045 | 2243 | |
2244 | arglist = chainon (arglist, parm); | |
2245 | typelist = TREE_CHAIN (typelist); | |
2246 | } | |
2247 | ||
e4b2c26c | 2248 | if (gfc_return_by_reference (sym)) |
4ee9c684 | 2249 | { |
d4163395 | 2250 | tree type = TREE_VALUE (typelist), length = NULL; |
4ee9c684 | 2251 | |
e4b2c26c | 2252 | if (sym->ts.type == BT_CHARACTER) |
2253 | { | |
e4b2c26c | 2254 | /* Length of character result. */ |
d4163395 | 2255 | tree len_type = TREE_VALUE (TREE_CHAIN (typelist)); |
4ee9c684 | 2256 | |
e60a6f7b | 2257 | length = build_decl (input_location, |
2258 | PARM_DECL, | |
e4b2c26c | 2259 | get_identifier (".__result"), |
d4163395 | 2260 | len_type); |
b345a09f | 2261 | if (POINTER_TYPE_P (len_type)) |
2262 | { | |
2263 | sym->ts.u.cl->passed_length = length; | |
2264 | TREE_USED (length) = 1; | |
2265 | } | |
2266 | else if (!sym->ts.u.cl->length) | |
e4b2c26c | 2267 | { |
eeebe20b | 2268 | sym->ts.u.cl->backend_decl = length; |
e4b2c26c | 2269 | TREE_USED (length) = 1; |
4ee9c684 | 2270 | } |
22d678e8 | 2271 | gcc_assert (TREE_CODE (length) == PARM_DECL); |
e4b2c26c | 2272 | DECL_CONTEXT (length) = fndecl; |
d4163395 | 2273 | DECL_ARG_TYPE (length) = len_type; |
e4b2c26c | 2274 | TREE_READONLY (length) = 1; |
b5b40b3f | 2275 | DECL_ARTIFICIAL (length) = 1; |
b9c7fce7 | 2276 | gfc_finish_decl (length); |
eeebe20b | 2277 | if (sym->ts.u.cl->backend_decl == NULL |
2278 | || sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2279 | { |
2280 | gfc_symbol *arg; | |
2281 | tree backend_decl; | |
4ee9c684 | 2282 | |
eeebe20b | 2283 | if (sym->ts.u.cl->backend_decl == NULL) |
d4163395 | 2284 | { |
e60a6f7b | 2285 | tree len = build_decl (input_location, |
2286 | VAR_DECL, | |
d4163395 | 2287 | get_identifier ("..__result"), |
2288 | gfc_charlen_type_node); | |
2289 | DECL_ARTIFICIAL (len) = 1; | |
2290 | TREE_USED (len) = 1; | |
eeebe20b | 2291 | sym->ts.u.cl->backend_decl = len; |
d4163395 | 2292 | } |
4ee9c684 | 2293 | |
d4163395 | 2294 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ |
2295 | arg = sym->result ? sym->result : sym; | |
2296 | backend_decl = arg->backend_decl; | |
2297 | /* Temporary clear it, so that gfc_sym_type creates complete | |
2298 | type. */ | |
2299 | arg->backend_decl = NULL; | |
2300 | type = gfc_sym_type (arg); | |
2301 | arg->backend_decl = backend_decl; | |
2302 | type = build_reference_type (type); | |
2303 | } | |
2304 | } | |
4ee9c684 | 2305 | |
e60a6f7b | 2306 | parm = build_decl (input_location, |
2307 | PARM_DECL, get_identifier ("__result"), type); | |
4ee9c684 | 2308 | |
d4163395 | 2309 | DECL_CONTEXT (parm) = fndecl; |
2310 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
2311 | TREE_READONLY (parm) = 1; | |
2312 | DECL_ARTIFICIAL (parm) = 1; | |
b9c7fce7 | 2313 | gfc_finish_decl (parm); |
4ee9c684 | 2314 | |
d4163395 | 2315 | arglist = chainon (arglist, parm); |
2316 | typelist = TREE_CHAIN (typelist); | |
4ee9c684 | 2317 | |
d4163395 | 2318 | if (sym->ts.type == BT_CHARACTER) |
2319 | { | |
2320 | gfc_allocate_lang_decl (parm); | |
2321 | arglist = chainon (arglist, length); | |
e4b2c26c | 2322 | typelist = TREE_CHAIN (typelist); |
2323 | } | |
2324 | } | |
4ee9c684 | 2325 | |
d4163395 | 2326 | hidden_typelist = typelist; |
6777213b | 2327 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
d4163395 | 2328 | if (f->sym != NULL) /* Ignore alternate returns. */ |
2329 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2330 | ||
6777213b | 2331 | for (f = gfc_sym_get_dummy_args (sym); f; f = f->next) |
e4b2c26c | 2332 | { |
2333 | char name[GFC_MAX_SYMBOL_LEN + 2]; | |
d4163395 | 2334 | |
e4b2c26c | 2335 | /* Ignore alternate returns. */ |
2336 | if (f->sym == NULL) | |
2337 | continue; | |
4ee9c684 | 2338 | |
e4b2c26c | 2339 | type = TREE_VALUE (typelist); |
4ee9c684 | 2340 | |
296db1d1 | 2341 | if (f->sym->ts.type == BT_CHARACTER |
2342 | && (!sym->attr.is_bind_c || sym->attr.entry_master)) | |
d4163395 | 2343 | { |
2344 | tree len_type = TREE_VALUE (hidden_typelist); | |
2345 | tree length = NULL_TREE; | |
617125a6 | 2346 | if (!f->sym->ts.deferred) |
2347 | gcc_assert (len_type == gfc_charlen_type_node); | |
2348 | else | |
2349 | gcc_assert (POINTER_TYPE_P (len_type)); | |
d4163395 | 2350 | |
2351 | strcpy (&name[1], f->sym->name); | |
2352 | name[0] = '_'; | |
e60a6f7b | 2353 | length = build_decl (input_location, |
2354 | PARM_DECL, get_identifier (name), len_type); | |
4ee9c684 | 2355 | |
d4163395 | 2356 | hidden_arglist = chainon (hidden_arglist, length); |
2357 | DECL_CONTEXT (length) = fndecl; | |
2358 | DECL_ARTIFICIAL (length) = 1; | |
2359 | DECL_ARG_TYPE (length) = len_type; | |
2360 | TREE_READONLY (length) = 1; | |
b9c7fce7 | 2361 | gfc_finish_decl (length); |
4ee9c684 | 2362 | |
a4abf8a0 | 2363 | /* Remember the passed value. */ |
a90fe829 | 2364 | if (!f->sym->ts.u.cl || f->sym->ts.u.cl->passed_length) |
6be7c32c | 2365 | { |
2366 | /* This can happen if the same type is used for multiple | |
2367 | arguments. We need to copy cl as otherwise | |
2368 | cl->passed_length gets overwritten. */ | |
d270ce52 | 2369 | f->sym->ts.u.cl = gfc_new_charlen (f->sym->ns, f->sym->ts.u.cl); |
6be7c32c | 2370 | } |
eeebe20b | 2371 | f->sym->ts.u.cl->passed_length = length; |
4ee9c684 | 2372 | |
d4163395 | 2373 | /* Use the passed value for assumed length variables. */ |
eeebe20b | 2374 | if (!f->sym->ts.u.cl->length) |
4ee9c684 | 2375 | { |
d4163395 | 2376 | TREE_USED (length) = 1; |
eeebe20b | 2377 | gcc_assert (!f->sym->ts.u.cl->backend_decl); |
2378 | f->sym->ts.u.cl->backend_decl = length; | |
d4163395 | 2379 | } |
2380 | ||
2381 | hidden_typelist = TREE_CHAIN (hidden_typelist); | |
2382 | ||
eeebe20b | 2383 | if (f->sym->ts.u.cl->backend_decl == NULL |
2384 | || f->sym->ts.u.cl->backend_decl == length) | |
d4163395 | 2385 | { |
ddcfeaf1 | 2386 | if (POINTER_TYPE_P (len_type)) |
2387 | f->sym->ts.u.cl->backend_decl = | |
2388 | build_fold_indirect_ref_loc (input_location, length); | |
2389 | else if (f->sym->ts.u.cl->backend_decl == NULL) | |
d4163395 | 2390 | gfc_create_string_length (f->sym); |
2391 | ||
2392 | /* Make sure PARM_DECL type doesn't point to incomplete type. */ | |
2393 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2394 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2395 | else | |
2396 | type = gfc_sym_type (f->sym); | |
4ee9c684 | 2397 | } |
4ee9c684 | 2398 | } |
532c2d79 | 2399 | /* For noncharacter scalar intrinsic types, VALUE passes the value, |
1cdfcee9 | 2400 | hence, the optional status cannot be transferred via a NULL pointer. |
532c2d79 | 2401 | Thus, we will use a hidden argument in that case. */ |
2402 | else if (f->sym->attr.optional && f->sym->attr.value | |
68cc384e | 2403 | && !f->sym->attr.dimension && f->sym->ts.type != BT_CLASS |
d7cd448a | 2404 | && !gfc_bt_struct (f->sym->ts.type)) |
532c2d79 | 2405 | { |
2406 | tree tmp; | |
2407 | strcpy (&name[1], f->sym->name); | |
2408 | name[0] = '_'; | |
2409 | tmp = build_decl (input_location, | |
2410 | PARM_DECL, get_identifier (name), | |
2411 | boolean_type_node); | |
2412 | ||
2413 | hidden_arglist = chainon (hidden_arglist, tmp); | |
2414 | DECL_CONTEXT (tmp) = fndecl; | |
2415 | DECL_ARTIFICIAL (tmp) = 1; | |
2416 | DECL_ARG_TYPE (tmp) = boolean_type_node; | |
2417 | TREE_READONLY (tmp) = 1; | |
2418 | gfc_finish_decl (tmp); | |
2419 | } | |
4ee9c684 | 2420 | |
d4163395 | 2421 | /* For non-constant length array arguments, make sure they use |
2422 | a different type node from TYPE_ARG_TYPES type. */ | |
2423 | if (f->sym->attr.dimension | |
2424 | && type == TREE_VALUE (typelist) | |
2425 | && TREE_CODE (type) == POINTER_TYPE | |
2426 | && GFC_ARRAY_TYPE_P (type) | |
2427 | && f->sym->as->type != AS_ASSUMED_SIZE | |
2428 | && ! COMPLETE_TYPE_P (TREE_TYPE (type))) | |
2429 | { | |
2430 | if (f->sym->attr.flavor == FL_PROCEDURE) | |
2431 | type = build_pointer_type (gfc_get_function_type (f->sym)); | |
2432 | else | |
2433 | type = gfc_sym_type (f->sym); | |
2434 | } | |
2435 | ||
cad0ddcf | 2436 | if (f->sym->attr.proc_pointer) |
2437 | type = build_pointer_type (type); | |
2438 | ||
2364aa60 | 2439 | if (f->sym->attr.volatile_) |
2440 | type = build_qualified_type (type, TYPE_QUAL_VOLATILE); | |
2441 | ||
69b1505f | 2442 | /* Build the argument declaration. */ |
e60a6f7b | 2443 | parm = build_decl (input_location, |
2444 | PARM_DECL, gfc_sym_identifier (f->sym), type); | |
d4163395 | 2445 | |
2364aa60 | 2446 | if (f->sym->attr.volatile_) |
2447 | { | |
2448 | TREE_THIS_VOLATILE (parm) = 1; | |
2449 | TREE_SIDE_EFFECTS (parm) = 1; | |
2450 | } | |
2451 | ||
d4163395 | 2452 | /* Fill in arg stuff. */ |
2453 | DECL_CONTEXT (parm) = fndecl; | |
2454 | DECL_ARG_TYPE (parm) = TREE_VALUE (typelist); | |
5defa6e6 | 2455 | /* All implementation args except for VALUE are read-only. */ |
2456 | if (!f->sym->attr.value) | |
2457 | TREE_READONLY (parm) = 1; | |
98923a84 | 2458 | if (POINTER_TYPE_P (type) |
2459 | && (!f->sym->attr.proc_pointer | |
2460 | && f->sym->attr.flavor != FL_PROCEDURE)) | |
2461 | DECL_BY_REFERENCE (parm) = 1; | |
d4163395 | 2462 | |
b9c7fce7 | 2463 | gfc_finish_decl (parm); |
cf5f881f | 2464 | gfc_finish_decl_attrs (parm, &f->sym->attr); |
d4163395 | 2465 | |
2466 | f->sym->backend_decl = parm; | |
2467 | ||
7dce33fe | 2468 | /* Coarrays which are descriptorless or assumed-shape pass with |
2469 | -fcoarray=lib the token and the offset as hidden arguments. */ | |
4fe73152 | 2470 | if (flag_coarray == GFC_FCOARRAY_LIB |
d44f2f7c | 2471 | && ((f->sym->ts.type != BT_CLASS && f->sym->attr.codimension |
2472 | && !f->sym->attr.allocatable) | |
2473 | || (f->sym->ts.type == BT_CLASS | |
2474 | && CLASS_DATA (f->sym)->attr.codimension | |
2475 | && !CLASS_DATA (f->sym)->attr.allocatable))) | |
85c94a64 | 2476 | { |
2477 | tree caf_type; | |
2478 | tree token; | |
2479 | tree offset; | |
2480 | ||
2481 | gcc_assert (f->sym->backend_decl != NULL_TREE | |
2482 | && !sym->attr.is_bind_c); | |
d44f2f7c | 2483 | caf_type = f->sym->ts.type == BT_CLASS |
2484 | ? TREE_TYPE (CLASS_DATA (f->sym)->backend_decl) | |
2485 | : TREE_TYPE (f->sym->backend_decl); | |
85c94a64 | 2486 | |
85c94a64 | 2487 | token = build_decl (input_location, PARM_DECL, |
2488 | create_tmp_var_name ("caf_token"), | |
2489 | build_qualified_type (pvoid_type_node, | |
2490 | TYPE_QUAL_RESTRICT)); | |
d44f2f7c | 2491 | if ((f->sym->ts.type != BT_CLASS |
2492 | && f->sym->as->type != AS_DEFERRED) | |
2493 | || (f->sym->ts.type == BT_CLASS | |
2494 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2495 | { |
2496 | gcc_assert (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL | |
2497 | || GFC_DECL_TOKEN (f->sym->backend_decl) == NULL_TREE); | |
2498 | if (DECL_LANG_SPECIFIC (f->sym->backend_decl) == NULL) | |
2499 | gfc_allocate_lang_decl (f->sym->backend_decl); | |
2500 | GFC_DECL_TOKEN (f->sym->backend_decl) = token; | |
2501 | } | |
2502 | else | |
2503 | { | |
2504 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) == NULL_TREE); | |
2505 | GFC_TYPE_ARRAY_CAF_TOKEN (caf_type) = token; | |
2506 | } | |
a90fe829 | 2507 | |
85c94a64 | 2508 | DECL_CONTEXT (token) = fndecl; |
2509 | DECL_ARTIFICIAL (token) = 1; | |
2510 | DECL_ARG_TYPE (token) = TREE_VALUE (typelist); | |
2511 | TREE_READONLY (token) = 1; | |
2512 | hidden_arglist = chainon (hidden_arglist, token); | |
2513 | gfc_finish_decl (token); | |
2514 | ||
85c94a64 | 2515 | offset = build_decl (input_location, PARM_DECL, |
2516 | create_tmp_var_name ("caf_offset"), | |
2517 | gfc_array_index_type); | |
2518 | ||
d44f2f7c | 2519 | if ((f->sym->ts.type != BT_CLASS |
2520 | && f->sym->as->type != AS_DEFERRED) | |
2521 | || (f->sym->ts.type == BT_CLASS | |
2522 | && CLASS_DATA (f->sym)->as->type != AS_DEFERRED)) | |
7dce33fe | 2523 | { |
2524 | gcc_assert (GFC_DECL_CAF_OFFSET (f->sym->backend_decl) | |
2525 | == NULL_TREE); | |
2526 | GFC_DECL_CAF_OFFSET (f->sym->backend_decl) = offset; | |
2527 | } | |
2528 | else | |
2529 | { | |
2530 | gcc_assert (GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) == NULL_TREE); | |
2531 | GFC_TYPE_ARRAY_CAF_OFFSET (caf_type) = offset; | |
2532 | } | |
85c94a64 | 2533 | DECL_CONTEXT (offset) = fndecl; |
2534 | DECL_ARTIFICIAL (offset) = 1; | |
2535 | DECL_ARG_TYPE (offset) = TREE_VALUE (typelist); | |
2536 | TREE_READONLY (offset) = 1; | |
2537 | hidden_arglist = chainon (hidden_arglist, offset); | |
2538 | gfc_finish_decl (offset); | |
2539 | } | |
2540 | ||
d4163395 | 2541 | arglist = chainon (arglist, parm); |
e4b2c26c | 2542 | typelist = TREE_CHAIN (typelist); |
4ee9c684 | 2543 | } |
e4b2c26c | 2544 | |
465e4a95 | 2545 | /* Add the hidden string length parameters, unless the procedure |
2546 | is bind(C). */ | |
2547 | if (!sym->attr.is_bind_c) | |
2548 | arglist = chainon (arglist, hidden_arglist); | |
d4163395 | 2549 | |
ebe27ea2 | 2550 | gcc_assert (hidden_typelist == NULL_TREE |
2551 | || TREE_VALUE (hidden_typelist) == void_type_node); | |
e4b2c26c | 2552 | DECL_ARGUMENTS (fndecl) = arglist; |
1b716045 | 2553 | } |
e4b2c26c | 2554 | |
1b716045 | 2555 | /* Do the setup necessary before generating the body of a function. */ |
2556 | ||
2557 | static void | |
2558 | trans_function_start (gfc_symbol * sym) | |
2559 | { | |
2560 | tree fndecl; | |
2561 | ||
2562 | fndecl = sym->backend_decl; | |
2563 | ||
f888a3fb | 2564 | /* Let GCC know the current scope is this function. */ |
1b716045 | 2565 | current_function_decl = fndecl; |
2566 | ||
f888a3fb | 2567 | /* Let the world know what we're about to do. */ |
1b716045 | 2568 | announce_function (fndecl); |
2569 | ||
16a40513 | 2570 | if (DECL_FILE_SCOPE_P (fndecl)) |
1b716045 | 2571 | { |
f888a3fb | 2572 | /* Create RTL for function declaration. */ |
1b716045 | 2573 | rest_of_decl_compilation (fndecl, 1, 0); |
2574 | } | |
2575 | ||
f888a3fb | 2576 | /* Create RTL for function definition. */ |
1b716045 | 2577 | make_decl_rtl (fndecl); |
2578 | ||
00cf115c | 2579 | allocate_struct_function (fndecl, false); |
1b716045 | 2580 | |
f888a3fb | 2581 | /* function.c requires a push at the start of the function. */ |
cde2be84 | 2582 | pushlevel (); |
1b716045 | 2583 | } |
2584 | ||
2585 | /* Create thunks for alternate entry points. */ | |
2586 | ||
2587 | static void | |
d896f9b3 | 2588 | build_entry_thunks (gfc_namespace * ns, bool global) |
1b716045 | 2589 | { |
2590 | gfc_formal_arglist *formal; | |
2591 | gfc_formal_arglist *thunk_formal; | |
2592 | gfc_entry_list *el; | |
2593 | gfc_symbol *thunk_sym; | |
2594 | stmtblock_t body; | |
2595 | tree thunk_fndecl; | |
1b716045 | 2596 | tree tmp; |
b31f705b | 2597 | locus old_loc; |
1b716045 | 2598 | |
2599 | /* This should always be a toplevel function. */ | |
22d678e8 | 2600 | gcc_assert (current_function_decl == NULL_TREE); |
1b716045 | 2601 | |
4671339c | 2602 | gfc_save_backend_locus (&old_loc); |
1b716045 | 2603 | for (el = ns->entries; el; el = el->next) |
2604 | { | |
f1f41a6c | 2605 | vec<tree, va_gc> *args = NULL; |
2606 | vec<tree, va_gc> *string_args = NULL; | |
414c3a2c | 2607 | |
1b716045 | 2608 | thunk_sym = el->sym; |
a90fe829 | 2609 | |
d896f9b3 | 2610 | build_function_decl (thunk_sym, global); |
1b716045 | 2611 | create_function_arglist (thunk_sym); |
2612 | ||
2613 | trans_function_start (thunk_sym); | |
2614 | ||
2615 | thunk_fndecl = thunk_sym->backend_decl; | |
2616 | ||
e5004242 | 2617 | gfc_init_block (&body); |
1b716045 | 2618 | |
f888a3fb | 2619 | /* Pass extra parameter identifying this entry point. */ |
7016c612 | 2620 | tmp = build_int_cst (gfc_array_index_type, el->id); |
f1f41a6c | 2621 | vec_safe_push (args, tmp); |
1b716045 | 2622 | |
c6871095 | 2623 | if (thunk_sym->attr.function) |
2624 | { | |
2625 | if (gfc_return_by_reference (ns->proc_name)) | |
2626 | { | |
2627 | tree ref = DECL_ARGUMENTS (current_function_decl); | |
f1f41a6c | 2628 | vec_safe_push (args, ref); |
c6871095 | 2629 | if (ns->proc_name->ts.type == BT_CHARACTER) |
f1f41a6c | 2630 | vec_safe_push (args, DECL_CHAIN (ref)); |
c6871095 | 2631 | } |
2632 | } | |
2633 | ||
6777213b | 2634 | for (formal = gfc_sym_get_dummy_args (ns->proc_name); formal; |
2635 | formal = formal->next) | |
1b716045 | 2636 | { |
c6871095 | 2637 | /* Ignore alternate returns. */ |
2638 | if (formal->sym == NULL) | |
2639 | continue; | |
2640 | ||
1b716045 | 2641 | /* We don't have a clever way of identifying arguments, so resort to |
2642 | a brute-force search. */ | |
6777213b | 2643 | for (thunk_formal = gfc_sym_get_dummy_args (thunk_sym); |
1b716045 | 2644 | thunk_formal; |
2645 | thunk_formal = thunk_formal->next) | |
2646 | { | |
2647 | if (thunk_formal->sym == formal->sym) | |
2648 | break; | |
2649 | } | |
2650 | ||
2651 | if (thunk_formal) | |
2652 | { | |
2653 | /* Pass the argument. */ | |
d95efb59 | 2654 | DECL_ARTIFICIAL (thunk_formal->sym->backend_decl) = 1; |
f1f41a6c | 2655 | vec_safe_push (args, thunk_formal->sym->backend_decl); |
1b716045 | 2656 | if (formal->sym->ts.type == BT_CHARACTER) |
2657 | { | |
eeebe20b | 2658 | tmp = thunk_formal->sym->ts.u.cl->backend_decl; |
f1f41a6c | 2659 | vec_safe_push (string_args, tmp); |
1b716045 | 2660 | } |
2661 | } | |
2662 | else | |
2663 | { | |
2664 | /* Pass NULL for a missing argument. */ | |
f1f41a6c | 2665 | vec_safe_push (args, null_pointer_node); |
1b716045 | 2666 | if (formal->sym->ts.type == BT_CHARACTER) |
2667 | { | |
7d3075f6 | 2668 | tmp = build_int_cst (gfc_charlen_type_node, 0); |
f1f41a6c | 2669 | vec_safe_push (string_args, tmp); |
1b716045 | 2670 | } |
2671 | } | |
2672 | } | |
2673 | ||
2674 | /* Call the master function. */ | |
f1f41a6c | 2675 | vec_safe_splice (args, string_args); |
1b716045 | 2676 | tmp = ns->proc_name->backend_decl; |
414c3a2c | 2677 | tmp = build_call_expr_loc_vec (input_location, tmp, args); |
c6871095 | 2678 | if (ns->proc_name->attr.mixed_entry_master) |
2679 | { | |
2680 | tree union_decl, field; | |
2681 | tree master_type = TREE_TYPE (ns->proc_name->backend_decl); | |
2682 | ||
e60a6f7b | 2683 | union_decl = build_decl (input_location, |
2684 | VAR_DECL, get_identifier ("__result"), | |
c6871095 | 2685 | TREE_TYPE (master_type)); |
2686 | DECL_ARTIFICIAL (union_decl) = 1; | |
2687 | DECL_EXTERNAL (union_decl) = 0; | |
2688 | TREE_PUBLIC (union_decl) = 0; | |
2689 | TREE_USED (union_decl) = 1; | |
2690 | layout_decl (union_decl, 0); | |
2691 | pushdecl (union_decl); | |
2692 | ||
2693 | DECL_CONTEXT (union_decl) = current_function_decl; | |
fd779e1d | 2694 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
2695 | TREE_TYPE (union_decl), union_decl, tmp); | |
c6871095 | 2696 | gfc_add_expr_to_block (&body, tmp); |
2697 | ||
2698 | for (field = TYPE_FIELDS (TREE_TYPE (union_decl)); | |
1767a056 | 2699 | field; field = DECL_CHAIN (field)) |
c6871095 | 2700 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2701 | thunk_sym->result->name) == 0) | |
2702 | break; | |
2703 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2704 | tmp = fold_build3_loc (input_location, COMPONENT_REF, |
2705 | TREE_TYPE (field), union_decl, field, | |
2706 | NULL_TREE); | |
a90fe829 | 2707 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2708 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2709 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2710 | tmp = build1_v (RETURN_EXPR, tmp); |
2711 | } | |
2712 | else if (TREE_TYPE (DECL_RESULT (current_function_decl)) | |
2713 | != void_type_node) | |
2714 | { | |
fd779e1d | 2715 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
f75d6b8a | 2716 | TREE_TYPE (DECL_RESULT (current_function_decl)), |
2717 | DECL_RESULT (current_function_decl), tmp); | |
c6871095 | 2718 | tmp = build1_v (RETURN_EXPR, tmp); |
2719 | } | |
1b716045 | 2720 | gfc_add_expr_to_block (&body, tmp); |
2721 | ||
2722 | /* Finish off this function and send it for code generation. */ | |
2723 | DECL_SAVED_TREE (thunk_fndecl) = gfc_finish_block (&body); | |
e5004242 | 2724 | tmp = getdecls (); |
cde2be84 | 2725 | poplevel (1, 1); |
1b716045 | 2726 | BLOCK_SUPERCONTEXT (DECL_INITIAL (thunk_fndecl)) = thunk_fndecl; |
e5004242 | 2727 | DECL_SAVED_TREE (thunk_fndecl) |
2728 | = build3_v (BIND_EXPR, tmp, DECL_SAVED_TREE (thunk_fndecl), | |
2729 | DECL_INITIAL (thunk_fndecl)); | |
1b716045 | 2730 | |
2731 | /* Output the GENERIC tree. */ | |
2732 | dump_function (TDI_original, thunk_fndecl); | |
2733 | ||
2734 | /* Store the end of the function, so that we get good line number | |
2735 | info for the epilogue. */ | |
2736 | cfun->function_end_locus = input_location; | |
2737 | ||
2738 | /* We're leaving the context of this function, so zap cfun. | |
2739 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
2740 | tree_rest_of_compilation. */ | |
87d4aa85 | 2741 | set_cfun (NULL); |
1b716045 | 2742 | |
2743 | current_function_decl = NULL_TREE; | |
2744 | ||
35ee1c66 | 2745 | cgraph_node::finalize_function (thunk_fndecl, true); |
1b716045 | 2746 | |
2747 | /* We share the symbols in the formal argument list with other entry | |
2748 | points and the master function. Clear them so that they are | |
2749 | recreated for each function. */ | |
6777213b | 2750 | for (formal = gfc_sym_get_dummy_args (thunk_sym); formal; |
2751 | formal = formal->next) | |
c6871095 | 2752 | if (formal->sym != NULL) /* Ignore alternate returns. */ |
2753 | { | |
2754 | formal->sym->backend_decl = NULL_TREE; | |
2755 | if (formal->sym->ts.type == BT_CHARACTER) | |
eeebe20b | 2756 | formal->sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2757 | } |
2758 | ||
2759 | if (thunk_sym->attr.function) | |
1b716045 | 2760 | { |
c6871095 | 2761 | if (thunk_sym->ts.type == BT_CHARACTER) |
eeebe20b | 2762 | thunk_sym->ts.u.cl->backend_decl = NULL_TREE; |
c6871095 | 2763 | if (thunk_sym->result->ts.type == BT_CHARACTER) |
eeebe20b | 2764 | thunk_sym->result->ts.u.cl->backend_decl = NULL_TREE; |
1b716045 | 2765 | } |
2766 | } | |
b31f705b | 2767 | |
4671339c | 2768 | gfc_restore_backend_locus (&old_loc); |
1b716045 | 2769 | } |
2770 | ||
2771 | ||
2772 | /* Create a decl for a function, and create any thunks for alternate entry | |
d896f9b3 | 2773 | points. If global is true, generate the function in the global binding |
2774 | level, otherwise in the current binding level (which can be global). */ | |
1b716045 | 2775 | |
2776 | void | |
d896f9b3 | 2777 | gfc_create_function_decl (gfc_namespace * ns, bool global) |
1b716045 | 2778 | { |
2779 | /* Create a declaration for the master function. */ | |
d896f9b3 | 2780 | build_function_decl (ns->proc_name, global); |
1b716045 | 2781 | |
f888a3fb | 2782 | /* Compile the entry thunks. */ |
1b716045 | 2783 | if (ns->entries) |
d896f9b3 | 2784 | build_entry_thunks (ns, global); |
1b716045 | 2785 | |
2786 | /* Now create the read argument list. */ | |
2787 | create_function_arglist (ns->proc_name); | |
15b28553 | 2788 | |
2789 | if (ns->omp_declare_simd) | |
2790 | gfc_trans_omp_declare_simd (ns); | |
1b716045 | 2791 | } |
2792 | ||
c750cc52 | 2793 | /* Return the decl used to hold the function return value. If |
3350e716 | 2794 | parent_flag is set, the context is the parent_scope. */ |
4ee9c684 | 2795 | |
2796 | tree | |
c750cc52 | 2797 | gfc_get_fake_result_decl (gfc_symbol * sym, int parent_flag) |
4ee9c684 | 2798 | { |
c750cc52 | 2799 | tree decl; |
2800 | tree length; | |
2801 | tree this_fake_result_decl; | |
2802 | tree this_function_decl; | |
4ee9c684 | 2803 | |
2804 | char name[GFC_MAX_SYMBOL_LEN + 10]; | |
2805 | ||
c750cc52 | 2806 | if (parent_flag) |
2807 | { | |
2808 | this_fake_result_decl = parent_fake_result_decl; | |
2809 | this_function_decl = DECL_CONTEXT (current_function_decl); | |
2810 | } | |
2811 | else | |
2812 | { | |
2813 | this_fake_result_decl = current_fake_result_decl; | |
2814 | this_function_decl = current_function_decl; | |
2815 | } | |
2816 | ||
c6871095 | 2817 | if (sym |
c750cc52 | 2818 | && sym->ns->proc_name->backend_decl == this_function_decl |
d4163395 | 2819 | && sym->ns->proc_name->attr.entry_master |
c6871095 | 2820 | && sym != sym->ns->proc_name) |
2821 | { | |
d4163395 | 2822 | tree t = NULL, var; |
c750cc52 | 2823 | if (this_fake_result_decl != NULL) |
2824 | for (t = TREE_CHAIN (this_fake_result_decl); t; t = TREE_CHAIN (t)) | |
d4163395 | 2825 | if (strcmp (IDENTIFIER_POINTER (TREE_PURPOSE (t)), sym->name) == 0) |
2826 | break; | |
2827 | if (t) | |
2828 | return TREE_VALUE (t); | |
c750cc52 | 2829 | decl = gfc_get_fake_result_decl (sym->ns->proc_name, parent_flag); |
2830 | ||
2831 | if (parent_flag) | |
2832 | this_fake_result_decl = parent_fake_result_decl; | |
2833 | else | |
2834 | this_fake_result_decl = current_fake_result_decl; | |
2835 | ||
d4163395 | 2836 | if (decl && sym->ns->proc_name->attr.mixed_entry_master) |
c6871095 | 2837 | { |
2838 | tree field; | |
2839 | ||
2840 | for (field = TYPE_FIELDS (TREE_TYPE (decl)); | |
1767a056 | 2841 | field; field = DECL_CHAIN (field)) |
c6871095 | 2842 | if (strcmp (IDENTIFIER_POINTER (DECL_NAME (field)), |
2843 | sym->name) == 0) | |
2844 | break; | |
2845 | ||
2846 | gcc_assert (field != NULL_TREE); | |
fd779e1d | 2847 | decl = fold_build3_loc (input_location, COMPONENT_REF, |
2848 | TREE_TYPE (field), decl, field, NULL_TREE); | |
c6871095 | 2849 | } |
c750cc52 | 2850 | |
2851 | var = create_tmp_var_raw (TREE_TYPE (decl), sym->name); | |
2852 | if (parent_flag) | |
2853 | gfc_add_decl_to_parent_function (var); | |
2854 | else | |
2855 | gfc_add_decl_to_function (var); | |
2856 | ||
d4163395 | 2857 | SET_DECL_VALUE_EXPR (var, decl); |
2858 | DECL_HAS_VALUE_EXPR_P (var) = 1; | |
2cf330c4 | 2859 | GFC_DECL_RESULT (var) = 1; |
c750cc52 | 2860 | |
2861 | TREE_CHAIN (this_fake_result_decl) | |
2862 | = tree_cons (get_identifier (sym->name), var, | |
2863 | TREE_CHAIN (this_fake_result_decl)); | |
d4163395 | 2864 | return var; |
c6871095 | 2865 | } |
2866 | ||
c750cc52 | 2867 | if (this_fake_result_decl != NULL_TREE) |
2868 | return TREE_VALUE (this_fake_result_decl); | |
4ee9c684 | 2869 | |
2870 | /* Only when gfc_get_fake_result_decl is called by gfc_trans_return, | |
2871 | sym is NULL. */ | |
2872 | if (!sym) | |
2873 | return NULL_TREE; | |
2874 | ||
d4163395 | 2875 | if (sym->ts.type == BT_CHARACTER) |
4ee9c684 | 2876 | { |
eeebe20b | 2877 | if (sym->ts.u.cl->backend_decl == NULL_TREE) |
d4163395 | 2878 | length = gfc_create_string_length (sym); |
2879 | else | |
eeebe20b | 2880 | length = sym->ts.u.cl->backend_decl; |
d4163395 | 2881 | if (TREE_CODE (length) == VAR_DECL |
2882 | && DECL_CONTEXT (length) == NULL_TREE) | |
99042714 | 2883 | gfc_add_decl_to_function (length); |
4ee9c684 | 2884 | } |
2885 | ||
2886 | if (gfc_return_by_reference (sym)) | |
2887 | { | |
c750cc52 | 2888 | decl = DECL_ARGUMENTS (this_function_decl); |
c6871095 | 2889 | |
c750cc52 | 2890 | if (sym->ns->proc_name->backend_decl == this_function_decl |
c6871095 | 2891 | && sym->ns->proc_name->attr.entry_master) |
1767a056 | 2892 | decl = DECL_CHAIN (decl); |
4ee9c684 | 2893 | |
2894 | TREE_USED (decl) = 1; | |
2895 | if (sym->as) | |
2896 | decl = gfc_build_dummy_array_decl (sym, decl); | |
2897 | } | |
2898 | else | |
2899 | { | |
2900 | sprintf (name, "__result_%.20s", | |
c750cc52 | 2901 | IDENTIFIER_POINTER (DECL_NAME (this_function_decl))); |
4ee9c684 | 2902 | |
3350e716 | 2903 | if (!sym->attr.mixed_entry_master && sym->attr.function) |
1e71b314 | 2904 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2905 | VAR_DECL, get_identifier (name), |
3350e716 | 2906 | gfc_sym_type (sym)); |
2907 | else | |
1e71b314 | 2908 | decl = build_decl (DECL_SOURCE_LOCATION (this_function_decl), |
e60a6f7b | 2909 | VAR_DECL, get_identifier (name), |
3350e716 | 2910 | TREE_TYPE (TREE_TYPE (this_function_decl))); |
4ee9c684 | 2911 | DECL_ARTIFICIAL (decl) = 1; |
2912 | DECL_EXTERNAL (decl) = 0; | |
2913 | TREE_PUBLIC (decl) = 0; | |
2914 | TREE_USED (decl) = 1; | |
764f1175 | 2915 | GFC_DECL_RESULT (decl) = 1; |
a379e3a9 | 2916 | TREE_ADDRESSABLE (decl) = 1; |
4ee9c684 | 2917 | |
2918 | layout_decl (decl, 0); | |
cf5f881f | 2919 | gfc_finish_decl_attrs (decl, &sym->attr); |
4ee9c684 | 2920 | |
c750cc52 | 2921 | if (parent_flag) |
2922 | gfc_add_decl_to_parent_function (decl); | |
2923 | else | |
2924 | gfc_add_decl_to_function (decl); | |
4ee9c684 | 2925 | } |
2926 | ||
c750cc52 | 2927 | if (parent_flag) |
2928 | parent_fake_result_decl = build_tree_list (NULL, decl); | |
2929 | else | |
2930 | current_fake_result_decl = build_tree_list (NULL, decl); | |
4ee9c684 | 2931 | |
2932 | return decl; | |
2933 | } | |
2934 | ||
2935 | ||
2936 | /* Builds a function decl. The remaining parameters are the types of the | |
2937 | function arguments. Negative nargs indicates a varargs function. */ | |
2938 | ||
8ce86007 | 2939 | static tree |
2940 | build_library_function_decl_1 (tree name, const char *spec, | |
2941 | tree rettype, int nargs, va_list p) | |
4ee9c684 | 2942 | { |
f1f41a6c | 2943 | vec<tree, va_gc> *arglist; |
4ee9c684 | 2944 | tree fntype; |
2945 | tree fndecl; | |
4ee9c684 | 2946 | int n; |
2947 | ||
2948 | /* Library functions must be declared with global scope. */ | |
22d678e8 | 2949 | gcc_assert (current_function_decl == NULL_TREE); |
4ee9c684 | 2950 | |
4ee9c684 | 2951 | /* Create a list of the argument types. */ |
f1f41a6c | 2952 | vec_alloc (arglist, abs (nargs)); |
5edc3af9 | 2953 | for (n = abs (nargs); n > 0; n--) |
4ee9c684 | 2954 | { |
5edc3af9 | 2955 | tree argtype = va_arg (p, tree); |
f1f41a6c | 2956 | arglist->quick_push (argtype); |
4ee9c684 | 2957 | } |
2958 | ||
2959 | /* Build the function type and decl. */ | |
5edc3af9 | 2960 | if (nargs >= 0) |
2961 | fntype = build_function_type_vec (rettype, arglist); | |
2962 | else | |
2963 | fntype = build_varargs_function_type_vec (rettype, arglist); | |
8ce86007 | 2964 | if (spec) |
2965 | { | |
2966 | tree attr_args = build_tree_list (NULL_TREE, | |
2967 | build_string (strlen (spec), spec)); | |
2968 | tree attrs = tree_cons (get_identifier ("fn spec"), | |
2969 | attr_args, TYPE_ATTRIBUTES (fntype)); | |
2970 | fntype = build_type_attribute_variant (fntype, attrs); | |
2971 | } | |
e60a6f7b | 2972 | fndecl = build_decl (input_location, |
2973 | FUNCTION_DECL, name, fntype); | |
4ee9c684 | 2974 | |
2975 | /* Mark this decl as external. */ | |
2976 | DECL_EXTERNAL (fndecl) = 1; | |
2977 | TREE_PUBLIC (fndecl) = 1; | |
2978 | ||
4ee9c684 | 2979 | pushdecl (fndecl); |
2980 | ||
b2c4af5e | 2981 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 2982 | |
2983 | return fndecl; | |
2984 | } | |
2985 | ||
8ce86007 | 2986 | /* Builds a function decl. The remaining parameters are the types of the |
2987 | function arguments. Negative nargs indicates a varargs function. */ | |
2988 | ||
2989 | tree | |
2990 | gfc_build_library_function_decl (tree name, tree rettype, int nargs, ...) | |
2991 | { | |
2992 | tree ret; | |
2993 | va_list args; | |
2994 | va_start (args, nargs); | |
2995 | ret = build_library_function_decl_1 (name, NULL, rettype, nargs, args); | |
2996 | va_end (args); | |
2997 | return ret; | |
2998 | } | |
2999 | ||
3000 | /* Builds a function decl. The remaining parameters are the types of the | |
3001 | function arguments. Negative nargs indicates a varargs function. | |
3002 | The SPEC parameter specifies the function argument and return type | |
3003 | specification according to the fnspec function type attribute. */ | |
3004 | ||
4bf69bc3 | 3005 | tree |
8ce86007 | 3006 | gfc_build_library_function_decl_with_spec (tree name, const char *spec, |
3007 | tree rettype, int nargs, ...) | |
3008 | { | |
3009 | tree ret; | |
3010 | va_list args; | |
3011 | va_start (args, nargs); | |
3012 | ret = build_library_function_decl_1 (name, spec, rettype, nargs, args); | |
3013 | va_end (args); | |
3014 | return ret; | |
3015 | } | |
3016 | ||
4ee9c684 | 3017 | static void |
3018 | gfc_build_intrinsic_function_decls (void) | |
3019 | { | |
90ba9145 | 3020 | tree gfc_int4_type_node = gfc_get_int_type (4); |
72ce5390 | 3021 | tree gfc_pint4_type_node = build_pointer_type (gfc_int4_type_node); |
90ba9145 | 3022 | tree gfc_int8_type_node = gfc_get_int_type (8); |
72ce5390 | 3023 | tree gfc_pint8_type_node = build_pointer_type (gfc_int8_type_node); |
920e54ef | 3024 | tree gfc_int16_type_node = gfc_get_int_type (16); |
90ba9145 | 3025 | tree gfc_logical4_type_node = gfc_get_logical_type (4); |
40b806de | 3026 | tree pchar1_type_node = gfc_get_pchar_type (1); |
3027 | tree pchar4_type_node = gfc_get_pchar_type (4); | |
90ba9145 | 3028 | |
4ee9c684 | 3029 | /* String functions. */ |
241ecdc7 | 3030 | gfor_fndecl_compare_string = gfc_build_library_function_decl_with_spec ( |
3031 | get_identifier (PREFIX("compare_string")), "..R.R", | |
3032 | integer_type_node, 4, gfc_charlen_type_node, pchar1_type_node, | |
3033 | gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 3034 | DECL_PURE_P (gfor_fndecl_compare_string) = 1; |
bc351485 | 3035 | TREE_NOTHROW (gfor_fndecl_compare_string) = 1; |
241ecdc7 | 3036 | |
3037 | gfor_fndecl_concat_string = gfc_build_library_function_decl_with_spec ( | |
3038 | get_identifier (PREFIX("concat_string")), "..W.R.R", | |
3039 | void_type_node, 6, gfc_charlen_type_node, pchar1_type_node, | |
3040 | gfc_charlen_type_node, pchar1_type_node, | |
3041 | gfc_charlen_type_node, pchar1_type_node); | |
bc351485 | 3042 | TREE_NOTHROW (gfor_fndecl_concat_string) = 1; |
241ecdc7 | 3043 | |
3044 | gfor_fndecl_string_len_trim = gfc_build_library_function_decl_with_spec ( | |
3045 | get_identifier (PREFIX("string_len_trim")), "..R", | |
3046 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar1_type_node); | |
537824d1 | 3047 | DECL_PURE_P (gfor_fndecl_string_len_trim) = 1; |
bc351485 | 3048 | TREE_NOTHROW (gfor_fndecl_string_len_trim) = 1; |
241ecdc7 | 3049 | |
3050 | gfor_fndecl_string_index = gfc_build_library_function_decl_with_spec ( | |
3051 | get_identifier (PREFIX("string_index")), "..R.R.", | |
3052 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3053 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3054 | DECL_PURE_P (gfor_fndecl_string_index) = 1; |
bc351485 | 3055 | TREE_NOTHROW (gfor_fndecl_string_index) = 1; |
241ecdc7 | 3056 | |
3057 | gfor_fndecl_string_scan = gfc_build_library_function_decl_with_spec ( | |
3058 | get_identifier (PREFIX("string_scan")), "..R.R.", | |
3059 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3060 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3061 | DECL_PURE_P (gfor_fndecl_string_scan) = 1; |
bc351485 | 3062 | TREE_NOTHROW (gfor_fndecl_string_scan) = 1; |
241ecdc7 | 3063 | |
3064 | gfor_fndecl_string_verify = gfc_build_library_function_decl_with_spec ( | |
3065 | get_identifier (PREFIX("string_verify")), "..R.R.", | |
3066 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar1_type_node, | |
3067 | gfc_charlen_type_node, pchar1_type_node, gfc_logical4_type_node); | |
537824d1 | 3068 | DECL_PURE_P (gfor_fndecl_string_verify) = 1; |
bc351485 | 3069 | TREE_NOTHROW (gfor_fndecl_string_verify) = 1; |
241ecdc7 | 3070 | |
3071 | gfor_fndecl_string_trim = gfc_build_library_function_decl_with_spec ( | |
3072 | get_identifier (PREFIX("string_trim")), ".Ww.R", | |
3073 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3074 | build_pointer_type (pchar1_type_node), gfc_charlen_type_node, | |
3075 | pchar1_type_node); | |
3076 | ||
3077 | gfor_fndecl_string_minmax = gfc_build_library_function_decl_with_spec ( | |
3078 | get_identifier (PREFIX("string_minmax")), ".Ww.R", | |
3079 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3080 | build_pointer_type (pchar1_type_node), integer_type_node, | |
3081 | integer_type_node); | |
3082 | ||
3083 | gfor_fndecl_adjustl = gfc_build_library_function_decl_with_spec ( | |
3084 | get_identifier (PREFIX("adjustl")), ".W.R", | |
3085 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3086 | pchar1_type_node); | |
bc351485 | 3087 | TREE_NOTHROW (gfor_fndecl_adjustl) = 1; |
241ecdc7 | 3088 | |
3089 | gfor_fndecl_adjustr = gfc_build_library_function_decl_with_spec ( | |
3090 | get_identifier (PREFIX("adjustr")), ".W.R", | |
3091 | void_type_node, 3, pchar1_type_node, gfc_charlen_type_node, | |
3092 | pchar1_type_node); | |
bc351485 | 3093 | TREE_NOTHROW (gfor_fndecl_adjustr) = 1; |
241ecdc7 | 3094 | |
3095 | gfor_fndecl_select_string = gfc_build_library_function_decl_with_spec ( | |
3096 | get_identifier (PREFIX("select_string")), ".R.R.", | |
3097 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3098 | pchar1_type_node, gfc_charlen_type_node); | |
537824d1 | 3099 | DECL_PURE_P (gfor_fndecl_select_string) = 1; |
bc351485 | 3100 | TREE_NOTHROW (gfor_fndecl_select_string) = 1; |
241ecdc7 | 3101 | |
3102 | gfor_fndecl_compare_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3103 | get_identifier (PREFIX("compare_string_char4")), "..R.R", | |
3104 | integer_type_node, 4, gfc_charlen_type_node, pchar4_type_node, | |
3105 | gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3106 | DECL_PURE_P (gfor_fndecl_compare_string_char4) = 1; |
bc351485 | 3107 | TREE_NOTHROW (gfor_fndecl_compare_string_char4) = 1; |
241ecdc7 | 3108 | |
3109 | gfor_fndecl_concat_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3110 | get_identifier (PREFIX("concat_string_char4")), "..W.R.R", | |
3111 | void_type_node, 6, gfc_charlen_type_node, pchar4_type_node, | |
3112 | gfc_charlen_type_node, pchar4_type_node, gfc_charlen_type_node, | |
3113 | pchar4_type_node); | |
bc351485 | 3114 | TREE_NOTHROW (gfor_fndecl_concat_string_char4) = 1; |
241ecdc7 | 3115 | |
3116 | gfor_fndecl_string_len_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3117 | get_identifier (PREFIX("string_len_trim_char4")), "..R", | |
3118 | gfc_charlen_type_node, 2, gfc_charlen_type_node, pchar4_type_node); | |
537824d1 | 3119 | DECL_PURE_P (gfor_fndecl_string_len_trim_char4) = 1; |
bc351485 | 3120 | TREE_NOTHROW (gfor_fndecl_string_len_trim_char4) = 1; |
241ecdc7 | 3121 | |
3122 | gfor_fndecl_string_index_char4 = gfc_build_library_function_decl_with_spec ( | |
3123 | get_identifier (PREFIX("string_index_char4")), "..R.R.", | |
3124 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3125 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3126 | DECL_PURE_P (gfor_fndecl_string_index_char4) = 1; |
bc351485 | 3127 | TREE_NOTHROW (gfor_fndecl_string_index_char4) = 1; |
241ecdc7 | 3128 | |
3129 | gfor_fndecl_string_scan_char4 = gfc_build_library_function_decl_with_spec ( | |
3130 | get_identifier (PREFIX("string_scan_char4")), "..R.R.", | |
3131 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3132 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3133 | DECL_PURE_P (gfor_fndecl_string_scan_char4) = 1; |
bc351485 | 3134 | TREE_NOTHROW (gfor_fndecl_string_scan_char4) = 1; |
241ecdc7 | 3135 | |
3136 | gfor_fndecl_string_verify_char4 = gfc_build_library_function_decl_with_spec ( | |
3137 | get_identifier (PREFIX("string_verify_char4")), "..R.R.", | |
3138 | gfc_charlen_type_node, 5, gfc_charlen_type_node, pchar4_type_node, | |
3139 | gfc_charlen_type_node, pchar4_type_node, gfc_logical4_type_node); | |
537824d1 | 3140 | DECL_PURE_P (gfor_fndecl_string_verify_char4) = 1; |
bc351485 | 3141 | TREE_NOTHROW (gfor_fndecl_string_verify_char4) = 1; |
241ecdc7 | 3142 | |
3143 | gfor_fndecl_string_trim_char4 = gfc_build_library_function_decl_with_spec ( | |
3144 | get_identifier (PREFIX("string_trim_char4")), ".Ww.R", | |
3145 | void_type_node, 4, build_pointer_type (gfc_charlen_type_node), | |
3146 | build_pointer_type (pchar4_type_node), gfc_charlen_type_node, | |
3147 | pchar4_type_node); | |
3148 | ||
3149 | gfor_fndecl_string_minmax_char4 = gfc_build_library_function_decl_with_spec ( | |
3150 | get_identifier (PREFIX("string_minmax_char4")), ".Ww.R", | |
3151 | void_type_node, -4, build_pointer_type (gfc_charlen_type_node), | |
3152 | build_pointer_type (pchar4_type_node), integer_type_node, | |
3153 | integer_type_node); | |
3154 | ||
3155 | gfor_fndecl_adjustl_char4 = gfc_build_library_function_decl_with_spec ( | |
3156 | get_identifier (PREFIX("adjustl_char4")), ".W.R", | |
3157 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3158 | pchar4_type_node); | |
bc351485 | 3159 | TREE_NOTHROW (gfor_fndecl_adjustl_char4) = 1; |
241ecdc7 | 3160 | |
3161 | gfor_fndecl_adjustr_char4 = gfc_build_library_function_decl_with_spec ( | |
3162 | get_identifier (PREFIX("adjustr_char4")), ".W.R", | |
3163 | void_type_node, 3, pchar4_type_node, gfc_charlen_type_node, | |
3164 | pchar4_type_node); | |
bc351485 | 3165 | TREE_NOTHROW (gfor_fndecl_adjustr_char4) = 1; |
241ecdc7 | 3166 | |
3167 | gfor_fndecl_select_string_char4 = gfc_build_library_function_decl_with_spec ( | |
3168 | get_identifier (PREFIX("select_string_char4")), ".R.R.", | |
3169 | integer_type_node, 4, pvoid_type_node, integer_type_node, | |
3170 | pvoid_type_node, gfc_charlen_type_node); | |
537824d1 | 3171 | DECL_PURE_P (gfor_fndecl_select_string_char4) = 1; |
bc351485 | 3172 | TREE_NOTHROW (gfor_fndecl_select_string_char4) = 1; |
b44437b9 | 3173 | |
3174 | ||
3175 | /* Conversion between character kinds. */ | |
3176 | ||
241ecdc7 | 3177 | gfor_fndecl_convert_char1_to_char4 = gfc_build_library_function_decl_with_spec ( |
3178 | get_identifier (PREFIX("convert_char1_to_char4")), ".w.R", | |
3179 | void_type_node, 3, build_pointer_type (pchar4_type_node), | |
3180 | gfc_charlen_type_node, pchar1_type_node); | |
b44437b9 | 3181 | |
241ecdc7 | 3182 | gfor_fndecl_convert_char4_to_char1 = gfc_build_library_function_decl_with_spec ( |
3183 | get_identifier (PREFIX("convert_char4_to_char1")), ".w.R", | |
3184 | void_type_node, 3, build_pointer_type (pchar1_type_node), | |
3185 | gfc_charlen_type_node, pchar4_type_node); | |
b44437b9 | 3186 | |
40b806de | 3187 | /* Misc. functions. */ |
5fcc6ec2 | 3188 | |
241ecdc7 | 3189 | gfor_fndecl_ttynam = gfc_build_library_function_decl_with_spec ( |
3190 | get_identifier (PREFIX("ttynam")), ".W", | |
3191 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3192 | integer_type_node); | |
3193 | ||
3194 | gfor_fndecl_fdate = gfc_build_library_function_decl_with_spec ( | |
3195 | get_identifier (PREFIX("fdate")), ".W", | |
3196 | void_type_node, 2, pchar_type_node, gfc_charlen_type_node); | |
3197 | ||
3198 | gfor_fndecl_ctime = gfc_build_library_function_decl_with_spec ( | |
3199 | get_identifier (PREFIX("ctime")), ".W", | |
3200 | void_type_node, 3, pchar_type_node, gfc_charlen_type_node, | |
3201 | gfc_int8_type_node); | |
3202 | ||
3203 | gfor_fndecl_sc_kind = gfc_build_library_function_decl_with_spec ( | |
3204 | get_identifier (PREFIX("selected_char_kind")), "..R", | |
3205 | gfc_int4_type_node, 2, gfc_charlen_type_node, pchar_type_node); | |
537824d1 | 3206 | DECL_PURE_P (gfor_fndecl_sc_kind) = 1; |
bc351485 | 3207 | TREE_NOTHROW (gfor_fndecl_sc_kind) = 1; |
241ecdc7 | 3208 | |
3209 | gfor_fndecl_si_kind = gfc_build_library_function_decl_with_spec ( | |
3210 | get_identifier (PREFIX("selected_int_kind")), ".R", | |
3211 | gfc_int4_type_node, 1, pvoid_type_node); | |
537824d1 | 3212 | DECL_PURE_P (gfor_fndecl_si_kind) = 1; |
bc351485 | 3213 | TREE_NOTHROW (gfor_fndecl_si_kind) = 1; |
241ecdc7 | 3214 | |
3215 | gfor_fndecl_sr_kind = gfc_build_library_function_decl_with_spec ( | |
3216 | get_identifier (PREFIX("selected_real_kind2008")), ".RR", | |
3217 | gfc_int4_type_node, 3, pvoid_type_node, pvoid_type_node, | |
3218 | pvoid_type_node); | |
537824d1 | 3219 | DECL_PURE_P (gfor_fndecl_sr_kind) = 1; |
bc351485 | 3220 | TREE_NOTHROW (gfor_fndecl_sr_kind) = 1; |
4ee9c684 | 3221 | |
72ce5390 | 3222 | gfor_fndecl_system_clock4 = gfc_build_library_function_decl ( |
3223 | get_identifier (PREFIX("system_clock_4")), | |
3224 | void_type_node, 3, gfc_pint4_type_node, gfc_pint4_type_node, | |
3225 | gfc_pint4_type_node); | |
3226 | ||
3227 | gfor_fndecl_system_clock8 = gfc_build_library_function_decl ( | |
3228 | get_identifier (PREFIX("system_clock_8")), | |
3229 | void_type_node, 3, gfc_pint8_type_node, gfc_pint8_type_node, | |
3230 | gfc_pint8_type_node); | |
3231 | ||
4ee9c684 | 3232 | /* Power functions. */ |
76834664 | 3233 | { |
920e54ef | 3234 | tree ctype, rtype, itype, jtype; |
3235 | int rkind, ikind, jkind; | |
3236 | #define NIKINDS 3 | |
3237 | #define NRKINDS 4 | |
3238 | static int ikinds[NIKINDS] = {4, 8, 16}; | |
3239 | static int rkinds[NRKINDS] = {4, 8, 10, 16}; | |
3240 | char name[PREFIX_LEN + 12]; /* _gfortran_pow_?n_?n */ | |
3241 | ||
3242 | for (ikind=0; ikind < NIKINDS; ikind++) | |
76834664 | 3243 | { |
920e54ef | 3244 | itype = gfc_get_int_type (ikinds[ikind]); |
3245 | ||
3246 | for (jkind=0; jkind < NIKINDS; jkind++) | |
3247 | { | |
3248 | jtype = gfc_get_int_type (ikinds[jkind]); | |
3249 | if (itype && jtype) | |
3250 | { | |
3251 | sprintf(name, PREFIX("pow_i%d_i%d"), ikinds[ikind], | |
3252 | ikinds[jkind]); | |
3253 | gfor_fndecl_math_powi[jkind][ikind].integer = | |
3254 | gfc_build_library_function_decl (get_identifier (name), | |
3255 | jtype, 2, jtype, itype); | |
2177d98b | 3256 | TREE_READONLY (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
bc351485 | 3257 | TREE_NOTHROW (gfor_fndecl_math_powi[jkind][ikind].integer) = 1; |
920e54ef | 3258 | } |
3259 | } | |
3260 | ||
3261 | for (rkind = 0; rkind < NRKINDS; rkind ++) | |
76834664 | 3262 | { |
920e54ef | 3263 | rtype = gfc_get_real_type (rkinds[rkind]); |
3264 | if (rtype && itype) | |
3265 | { | |
3266 | sprintf(name, PREFIX("pow_r%d_i%d"), rkinds[rkind], | |
3267 | ikinds[ikind]); | |
3268 | gfor_fndecl_math_powi[rkind][ikind].real = | |
3269 | gfc_build_library_function_decl (get_identifier (name), | |
3270 | rtype, 2, rtype, itype); | |
2177d98b | 3271 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
bc351485 | 3272 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].real) = 1; |
920e54ef | 3273 | } |
3274 | ||
3275 | ctype = gfc_get_complex_type (rkinds[rkind]); | |
3276 | if (ctype && itype) | |
3277 | { | |
3278 | sprintf(name, PREFIX("pow_c%d_i%d"), rkinds[rkind], | |
3279 | ikinds[ikind]); | |
3280 | gfor_fndecl_math_powi[rkind][ikind].cmplx = | |
3281 | gfc_build_library_function_decl (get_identifier (name), | |
3282 | ctype, 2,ctype, itype); | |
2177d98b | 3283 | TREE_READONLY (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
bc351485 | 3284 | TREE_NOTHROW (gfor_fndecl_math_powi[rkind][ikind].cmplx) = 1; |
920e54ef | 3285 | } |
76834664 | 3286 | } |
3287 | } | |
920e54ef | 3288 | #undef NIKINDS |
3289 | #undef NRKINDS | |
76834664 | 3290 | } |
3291 | ||
241ecdc7 | 3292 | gfor_fndecl_math_ishftc4 = gfc_build_library_function_decl ( |
3293 | get_identifier (PREFIX("ishftc4")), | |
3294 | gfc_int4_type_node, 3, gfc_int4_type_node, gfc_int4_type_node, | |
3295 | gfc_int4_type_node); | |
bc351485 | 3296 | TREE_READONLY (gfor_fndecl_math_ishftc4) = 1; |
3297 | TREE_NOTHROW (gfor_fndecl_math_ishftc4) = 1; | |
a90fe829 | 3298 | |
241ecdc7 | 3299 | gfor_fndecl_math_ishftc8 = gfc_build_library_function_decl ( |
3300 | get_identifier (PREFIX("ishftc8")), | |
3301 | gfc_int8_type_node, 3, gfc_int8_type_node, gfc_int4_type_node, | |
3302 | gfc_int4_type_node); | |
bc351485 | 3303 | TREE_READONLY (gfor_fndecl_math_ishftc8) = 1; |
3304 | TREE_NOTHROW (gfor_fndecl_math_ishftc8) = 1; | |
241ecdc7 | 3305 | |
920e54ef | 3306 | if (gfc_int16_type_node) |
bc351485 | 3307 | { |
3308 | gfor_fndecl_math_ishftc16 = gfc_build_library_function_decl ( | |
241ecdc7 | 3309 | get_identifier (PREFIX("ishftc16")), |
3310 | gfc_int16_type_node, 3, gfc_int16_type_node, gfc_int4_type_node, | |
3311 | gfc_int4_type_node); | |
bc351485 | 3312 | TREE_READONLY (gfor_fndecl_math_ishftc16) = 1; |
3313 | TREE_NOTHROW (gfor_fndecl_math_ishftc16) = 1; | |
3314 | } | |
920e54ef | 3315 | |
4e8e57b0 | 3316 | /* BLAS functions. */ |
3317 | { | |
36c921b9 | 3318 | tree pint = build_pointer_type (integer_type_node); |
4e8e57b0 | 3319 | tree ps = build_pointer_type (gfc_get_real_type (gfc_default_real_kind)); |
3320 | tree pd = build_pointer_type (gfc_get_real_type (gfc_default_double_kind)); | |
3321 | tree pc = build_pointer_type (gfc_get_complex_type (gfc_default_real_kind)); | |
3322 | tree pz = build_pointer_type | |
3323 | (gfc_get_complex_type (gfc_default_double_kind)); | |
3324 | ||
3325 | gfor_fndecl_sgemm = gfc_build_library_function_decl | |
3326 | (get_identifier | |
829d7a08 | 3327 | (flag_underscoring ? "sgemm_" : "sgemm"), |
4e8e57b0 | 3328 | void_type_node, 15, pchar_type_node, |
3329 | pchar_type_node, pint, pint, pint, ps, ps, pint, | |
36c921b9 | 3330 | ps, pint, ps, ps, pint, integer_type_node, |
3331 | integer_type_node); | |
4e8e57b0 | 3332 | gfor_fndecl_dgemm = gfc_build_library_function_decl |
3333 | (get_identifier | |
829d7a08 | 3334 | (flag_underscoring ? "dgemm_" : "dgemm"), |
4e8e57b0 | 3335 | void_type_node, 15, pchar_type_node, |
3336 | pchar_type_node, pint, pint, pint, pd, pd, pint, | |
36c921b9 | 3337 | pd, pint, pd, pd, pint, integer_type_node, |
3338 | integer_type_node); | |
4e8e57b0 | 3339 | gfor_fndecl_cgemm = gfc_build_library_function_decl |
3340 | (get_identifier | |
829d7a08 | 3341 | (flag_underscoring ? "cgemm_" : "cgemm"), |
4e8e57b0 | 3342 | void_type_node, 15, pchar_type_node, |
3343 | pchar_type_node, pint, pint, pint, pc, pc, pint, | |
36c921b9 | 3344 | pc, pint, pc, pc, pint, integer_type_node, |
3345 | integer_type_node); | |
4e8e57b0 | 3346 | gfor_fndecl_zgemm = gfc_build_library_function_decl |
3347 | (get_identifier | |
829d7a08 | 3348 | (flag_underscoring ? "zgemm_" : "zgemm"), |
4e8e57b0 | 3349 | void_type_node, 15, pchar_type_node, |
3350 | pchar_type_node, pint, pint, pint, pz, pz, pint, | |
36c921b9 | 3351 | pz, pint, pz, pz, pint, integer_type_node, |
3352 | integer_type_node); | |
4e8e57b0 | 3353 | } |
3354 | ||
4ee9c684 | 3355 | /* Other functions. */ |
241ecdc7 | 3356 | gfor_fndecl_size0 = gfc_build_library_function_decl_with_spec ( |
3357 | get_identifier (PREFIX("size0")), ".R", | |
3358 | gfc_array_index_type, 1, pvoid_type_node); | |
537824d1 | 3359 | DECL_PURE_P (gfor_fndecl_size0) = 1; |
bc351485 | 3360 | TREE_NOTHROW (gfor_fndecl_size0) = 1; |
241ecdc7 | 3361 | |
3362 | gfor_fndecl_size1 = gfc_build_library_function_decl_with_spec ( | |
3363 | get_identifier (PREFIX("size1")), ".R", | |
3364 | gfc_array_index_type, 2, pvoid_type_node, gfc_array_index_type); | |
537824d1 | 3365 | DECL_PURE_P (gfor_fndecl_size1) = 1; |
bc351485 | 3366 | TREE_NOTHROW (gfor_fndecl_size1) = 1; |
241ecdc7 | 3367 | |
3368 | gfor_fndecl_iargc = gfc_build_library_function_decl ( | |
3369 | get_identifier (PREFIX ("iargc")), gfc_int4_type_node, 0); | |
bc351485 | 3370 | TREE_NOTHROW (gfor_fndecl_iargc) = 1; |
4ee9c684 | 3371 | } |
3372 | ||
3373 | ||
3374 | /* Make prototypes for runtime library functions. */ | |
3375 | ||
3376 | void | |
3377 | gfc_build_builtin_function_decls (void) | |
3378 | { | |
90ba9145 | 3379 | tree gfc_int4_type_node = gfc_get_int_type (4); |
4ee9c684 | 3380 | |
241ecdc7 | 3381 | gfor_fndecl_stop_numeric = gfc_build_library_function_decl ( |
3382 | get_identifier (PREFIX("stop_numeric")), | |
3383 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3384 | /* STOP doesn't return. */ |
98ccec97 | 3385 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric) = 1; |
3386 | ||
dff2ea5f | 3387 | gfor_fndecl_stop_numeric_f08 = gfc_build_library_function_decl ( |
3388 | get_identifier (PREFIX("stop_numeric_f08")), | |
3389 | void_type_node, 1, gfc_int4_type_node); | |
3390 | /* STOP doesn't return. */ | |
3391 | TREE_THIS_VOLATILE (gfor_fndecl_stop_numeric_f08) = 1; | |
3392 | ||
241ecdc7 | 3393 | gfor_fndecl_stop_string = gfc_build_library_function_decl_with_spec ( |
3394 | get_identifier (PREFIX("stop_string")), ".R.", | |
3395 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
070cc790 | 3396 | /* STOP doesn't return. */ |
241ecdc7 | 3397 | TREE_THIS_VOLATILE (gfor_fndecl_stop_string) = 1; |
537824d1 | 3398 | |
241ecdc7 | 3399 | gfor_fndecl_error_stop_numeric = gfc_build_library_function_decl ( |
3400 | get_identifier (PREFIX("error_stop_numeric")), | |
3401 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3402 | /* ERROR STOP doesn't return. */ |
3403 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_numeric) = 1; | |
3404 | ||
241ecdc7 | 3405 | gfor_fndecl_error_stop_string = gfc_build_library_function_decl_with_spec ( |
3406 | get_identifier (PREFIX("error_stop_string")), ".R.", | |
3407 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
c6cd3066 | 3408 | /* ERROR STOP doesn't return. */ |
3409 | TREE_THIS_VOLATILE (gfor_fndecl_error_stop_string) = 1; | |
3410 | ||
241ecdc7 | 3411 | gfor_fndecl_pause_numeric = gfc_build_library_function_decl ( |
3412 | get_identifier (PREFIX("pause_numeric")), | |
3413 | void_type_node, 1, gfc_int4_type_node); | |
070cc790 | 3414 | |
241ecdc7 | 3415 | gfor_fndecl_pause_string = gfc_build_library_function_decl_with_spec ( |
3416 | get_identifier (PREFIX("pause_string")), ".R.", | |
3417 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
4ee9c684 | 3418 | |
241ecdc7 | 3419 | gfor_fndecl_runtime_error = gfc_build_library_function_decl_with_spec ( |
3420 | get_identifier (PREFIX("runtime_error")), ".R", | |
3421 | void_type_node, -1, pchar_type_node); | |
9c0f3811 | 3422 | /* The runtime_error function does not return. */ |
3423 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error) = 1; | |
4ee9c684 | 3424 | |
241ecdc7 | 3425 | gfor_fndecl_runtime_error_at = gfc_build_library_function_decl_with_spec ( |
3426 | get_identifier (PREFIX("runtime_error_at")), ".RR", | |
3427 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
50ad5fa2 | 3428 | /* The runtime_error_at function does not return. */ |
3429 | TREE_THIS_VOLATILE (gfor_fndecl_runtime_error_at) = 1; | |
a90fe829 | 3430 | |
241ecdc7 | 3431 | gfor_fndecl_runtime_warning_at = gfc_build_library_function_decl_with_spec ( |
3432 | get_identifier (PREFIX("runtime_warning_at")), ".RR", | |
3433 | void_type_node, -2, pchar_type_node, pchar_type_node); | |
3434 | ||
3435 | gfor_fndecl_generate_error = gfc_build_library_function_decl_with_spec ( | |
3436 | get_identifier (PREFIX("generate_error")), ".R.R", | |
3437 | void_type_node, 3, pvoid_type_node, integer_type_node, | |
3438 | pchar_type_node); | |
3439 | ||
3440 | gfor_fndecl_os_error = gfc_build_library_function_decl_with_spec ( | |
3441 | get_identifier (PREFIX("os_error")), ".R", | |
3442 | void_type_node, 1, pchar_type_node); | |
9915365e | 3443 | /* The runtime_error function does not return. */ |
3444 | TREE_THIS_VOLATILE (gfor_fndecl_os_error) = 1; | |
3445 | ||
241ecdc7 | 3446 | gfor_fndecl_set_args = gfc_build_library_function_decl ( |
3447 | get_identifier (PREFIX("set_args")), | |
3448 | void_type_node, 2, integer_type_node, | |
3449 | build_pointer_type (pchar_type_node)); | |
7257a5d2 | 3450 | |
241ecdc7 | 3451 | gfor_fndecl_set_fpe = gfc_build_library_function_decl ( |
3452 | get_identifier (PREFIX("set_fpe")), | |
3453 | void_type_node, 1, integer_type_node); | |
8c84a5de | 3454 | |
d566c3e0 | 3455 | gfor_fndecl_ieee_procedure_entry = gfc_build_library_function_decl ( |
3456 | get_identifier (PREFIX("ieee_procedure_entry")), | |
3457 | void_type_node, 1, pvoid_type_node); | |
3458 | ||
3459 | gfor_fndecl_ieee_procedure_exit = gfc_build_library_function_decl ( | |
3460 | get_identifier (PREFIX("ieee_procedure_exit")), | |
3461 | void_type_node, 1, pvoid_type_node); | |
3462 | ||
56c7c2d7 | 3463 | /* Keep the array dimension in sync with the call, later in this file. */ |
241ecdc7 | 3464 | gfor_fndecl_set_options = gfc_build_library_function_decl_with_spec ( |
3465 | get_identifier (PREFIX("set_options")), "..R", | |
3466 | void_type_node, 2, integer_type_node, | |
3467 | build_pointer_type (integer_type_node)); | |
64fc3c4c | 3468 | |
241ecdc7 | 3469 | gfor_fndecl_set_convert = gfc_build_library_function_decl ( |
3470 | get_identifier (PREFIX("set_convert")), | |
3471 | void_type_node, 1, integer_type_node); | |
15774a8b | 3472 | |
241ecdc7 | 3473 | gfor_fndecl_set_record_marker = gfc_build_library_function_decl ( |
3474 | get_identifier (PREFIX("set_record_marker")), | |
3475 | void_type_node, 1, integer_type_node); | |
f23886ab | 3476 | |
241ecdc7 | 3477 | gfor_fndecl_set_max_subrecord_length = gfc_build_library_function_decl ( |
3478 | get_identifier (PREFIX("set_max_subrecord_length")), | |
3479 | void_type_node, 1, integer_type_node); | |
bbaaa7b1 | 3480 | |
8ce86007 | 3481 | gfor_fndecl_in_pack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3482 | get_identifier (PREFIX("internal_pack")), ".r", |
3483 | pvoid_type_node, 1, pvoid_type_node); | |
4ee9c684 | 3484 | |
8ce86007 | 3485 | gfor_fndecl_in_unpack = gfc_build_library_function_decl_with_spec ( |
241ecdc7 | 3486 | get_identifier (PREFIX("internal_unpack")), ".wR", |
3487 | void_type_node, 2, pvoid_type_node, pvoid_type_node); | |
3488 | ||
3489 | gfor_fndecl_associated = gfc_build_library_function_decl_with_spec ( | |
3490 | get_identifier (PREFIX("associated")), ".RR", | |
3491 | integer_type_node, 2, ppvoid_type_node, ppvoid_type_node); | |
537824d1 | 3492 | DECL_PURE_P (gfor_fndecl_associated) = 1; |
bc351485 | 3493 | TREE_NOTHROW (gfor_fndecl_associated) = 1; |
4ee9c684 | 3494 | |
70b5944a | 3495 | /* Coarray library calls. */ |
4fe73152 | 3496 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 3497 | { |
3498 | tree pint_type, pppchar_type; | |
3499 | ||
3500 | pint_type = build_pointer_type (integer_type_node); | |
3501 | pppchar_type | |
3502 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
3503 | ||
3504 | gfor_fndecl_caf_init = gfc_build_library_function_decl ( | |
3505 | get_identifier (PREFIX("caf_init")), void_type_node, | |
53687b4e | 3506 | 2, pint_type, pppchar_type); |
70b5944a | 3507 | |
3508 | gfor_fndecl_caf_finalize = gfc_build_library_function_decl ( | |
3509 | get_identifier (PREFIX("caf_finalize")), void_type_node, 0); | |
3510 | ||
d44f2f7c | 3511 | gfor_fndecl_caf_this_image = gfc_build_library_function_decl ( |
3512 | get_identifier (PREFIX("caf_this_image")), integer_type_node, | |
3513 | 1, integer_type_node); | |
3514 | ||
3515 | gfor_fndecl_caf_num_images = gfc_build_library_function_decl ( | |
3516 | get_identifier (PREFIX("caf_num_images")), integer_type_node, | |
da82fa7c | 3517 | 2, integer_type_node, integer_type_node); |
d44f2f7c | 3518 | |
a961ca30 | 3519 | gfor_fndecl_caf_register = gfc_build_library_function_decl_with_spec ( |
3520 | get_identifier (PREFIX("caf_register")), "...WWW", pvoid_type_node, 6, | |
3521 | size_type_node, integer_type_node, ppvoid_type_node, pint_type, | |
d0d776fb | 3522 | pchar_type_node, integer_type_node); |
3523 | ||
3524 | gfor_fndecl_caf_deregister = gfc_build_library_function_decl_with_spec ( | |
3525 | get_identifier (PREFIX("caf_deregister")), ".WWW", void_type_node, 4, | |
3526 | ppvoid_type_node, pint_type, pchar_type_node, integer_type_node); | |
a961ca30 | 3527 | |
5f4a118e | 3528 | gfor_fndecl_caf_get = gfc_build_library_function_decl_with_spec ( |
6b5471d8 | 3529 | get_identifier (PREFIX("caf_get")), ".R.RRRWW", void_type_node, 10, |
5f4a118e | 3530 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
9f1c76f9 | 3531 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
6b5471d8 | 3532 | boolean_type_node, pint_type); |
5f4a118e | 3533 | |
3534 | gfor_fndecl_caf_send = gfc_build_library_function_decl_with_spec ( | |
6b5471d8 | 3535 | get_identifier (PREFIX("caf_send")), ".R.RRRRW", void_type_node, 10, |
5f4a118e | 3536 | pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
9f1c76f9 | 3537 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
6b5471d8 | 3538 | boolean_type_node, pint_type); |
5f4a118e | 3539 | |
3540 | gfor_fndecl_caf_sendget = gfc_build_library_function_decl_with_spec ( | |
3541 | get_identifier (PREFIX("caf_sendget")), ".R.RRRR.RRR", void_type_node, | |
9f1c76f9 | 3542 | 13, pvoid_type_node, size_type_node, integer_type_node, pvoid_type_node, |
5f4a118e | 3543 | pvoid_type_node, pvoid_type_node, size_type_node, integer_type_node, |
9f1c76f9 | 3544 | pvoid_type_node, pvoid_type_node, integer_type_node, integer_type_node, |
3545 | boolean_type_node); | |
5f4a118e | 3546 | |
70b5944a | 3547 | gfor_fndecl_caf_sync_all = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3548 | get_identifier (PREFIX("caf_sync_all")), ".WW", void_type_node, |
79ed4a8e | 3549 | 3, pint_type, pchar_type_node, integer_type_node); |
70b5944a | 3550 | |
71cf3ae6 | 3551 | gfor_fndecl_caf_sync_memory = gfc_build_library_function_decl_with_spec ( |
3552 | get_identifier (PREFIX("caf_sync_memory")), ".WW", void_type_node, | |
3553 | 3, pint_type, pchar_type_node, integer_type_node); | |
3554 | ||
70b5944a | 3555 | gfor_fndecl_caf_sync_images = gfc_build_library_function_decl_with_spec ( |
96b417f0 | 3556 | get_identifier (PREFIX("caf_sync_images")), ".RRWW", void_type_node, |
3557 | 5, integer_type_node, pint_type, pint_type, | |
79ed4a8e | 3558 | pchar_type_node, integer_type_node); |
70b5944a | 3559 | |
3560 | gfor_fndecl_caf_error_stop = gfc_build_library_function_decl ( | |
3561 | get_identifier (PREFIX("caf_error_stop")), | |
3562 | void_type_node, 1, gfc_int4_type_node); | |
3563 | /* CAF's ERROR STOP doesn't return. */ | |
3564 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop) = 1; | |
3565 | ||
3566 | gfor_fndecl_caf_error_stop_str = gfc_build_library_function_decl_with_spec ( | |
3567 | get_identifier (PREFIX("caf_error_stop_str")), ".R.", | |
3568 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
3569 | /* CAF's ERROR STOP doesn't return. */ | |
3570 | TREE_THIS_VOLATILE (gfor_fndecl_caf_error_stop_str) = 1; | |
79ed4a8e | 3571 | |
ba4d9b7e | 3572 | gfor_fndecl_caf_stop_numeric = gfc_build_library_function_decl_with_spec ( |
3573 | get_identifier (PREFIX("caf_stop_numeric")), ".R.", | |
3574 | void_type_node, 1, gfc_int4_type_node); | |
3575 | /* CAF's STOP doesn't return. */ | |
3576 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_numeric) = 1; | |
3577 | ||
3578 | gfor_fndecl_caf_stop_str = gfc_build_library_function_decl_with_spec ( | |
3579 | get_identifier (PREFIX("caf_stop_str")), ".R.", | |
3580 | void_type_node, 2, pchar_type_node, gfc_int4_type_node); | |
3581 | /* CAF's STOP doesn't return. */ | |
3582 | TREE_THIS_VOLATILE (gfor_fndecl_caf_stop_str) = 1; | |
3583 | ||
97b9ac34 | 3584 | gfor_fndecl_caf_atomic_def = gfc_build_library_function_decl_with_spec ( |
3585 | get_identifier (PREFIX("caf_atomic_define")), "R..RW", | |
3586 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3587 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); | |
3588 | ||
3589 | gfor_fndecl_caf_atomic_ref = gfc_build_library_function_decl_with_spec ( | |
3590 | get_identifier (PREFIX("caf_atomic_ref")), "R..WW", | |
3591 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3592 | pvoid_type_node, pint_type, integer_type_node, integer_type_node); | |
3593 | ||
3594 | gfor_fndecl_caf_atomic_cas = gfc_build_library_function_decl_with_spec ( | |
3595 | get_identifier (PREFIX("caf_atomic_cas")), "R..WRRW", | |
3596 | void_type_node, 9, pvoid_type_node, size_type_node, integer_type_node, | |
3597 | pvoid_type_node, pvoid_type_node, pvoid_type_node, pint_type, | |
3598 | integer_type_node, integer_type_node); | |
3599 | ||
3600 | gfor_fndecl_caf_atomic_op = gfc_build_library_function_decl_with_spec ( | |
3601 | get_identifier (PREFIX("caf_atomic_op")), ".R..RWW", | |
3602 | void_type_node, 9, integer_type_node, pvoid_type_node, size_type_node, | |
3603 | integer_type_node, pvoid_type_node, pvoid_type_node, pint_type, | |
3604 | integer_type_node, integer_type_node); | |
3605 | ||
498b946e | 3606 | gfor_fndecl_caf_lock = gfc_build_library_function_decl_with_spec ( |
3607 | get_identifier (PREFIX("caf_lock")), "R..WWW", | |
3608 | void_type_node, 7, pvoid_type_node, size_type_node, integer_type_node, | |
3609 | pint_type, pint_type, pchar_type_node, integer_type_node); | |
3610 | ||
3611 | gfor_fndecl_caf_unlock = gfc_build_library_function_decl_with_spec ( | |
3612 | get_identifier (PREFIX("caf_unlock")), "R..WW", | |
87550f4f | 3613 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, |
498b946e | 3614 | pint_type, pchar_type_node, integer_type_node); |
3615 | ||
bd47f0bc | 3616 | gfor_fndecl_caf_event_post = gfc_build_library_function_decl_with_spec ( |
3617 | get_identifier (PREFIX("caf_event_post")), "R..WW", | |
3618 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
3619 | pint_type, pchar_type_node, integer_type_node); | |
3620 | ||
3621 | gfor_fndecl_caf_event_wait = gfc_build_library_function_decl_with_spec ( | |
3622 | get_identifier (PREFIX("caf_event_wait")), "R..WW", | |
3623 | void_type_node, 6, pvoid_type_node, size_type_node, integer_type_node, | |
3624 | pint_type, pchar_type_node, integer_type_node); | |
3625 | ||
3626 | gfor_fndecl_caf_event_query = gfc_build_library_function_decl_with_spec ( | |
3627 | get_identifier (PREFIX("caf_event_query")), "R..WW", | |
3628 | void_type_node, 5, pvoid_type_node, size_type_node, integer_type_node, | |
3629 | pint_type, pint_type); | |
3630 | ||
52306a18 | 3631 | gfor_fndecl_co_broadcast = gfc_build_library_function_decl_with_spec ( |
3632 | get_identifier (PREFIX("caf_co_broadcast")), "W.WW", | |
3633 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
3634 | pint_type, pchar_type_node, integer_type_node); | |
3635 | ||
79ed4a8e | 3636 | gfor_fndecl_co_max = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3637 | get_identifier (PREFIX("caf_co_max")), "W.WW", |
3638 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3639 | pint_type, pchar_type_node, integer_type_node, integer_type_node); |
3640 | ||
3641 | gfor_fndecl_co_min = gfc_build_library_function_decl_with_spec ( | |
5f4a118e | 3642 | get_identifier (PREFIX("caf_co_min")), "W.WW", |
3643 | void_type_node, 6, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3644 | pint_type, pchar_type_node, integer_type_node, integer_type_node); |
3645 | ||
e39efcef | 3646 | gfor_fndecl_co_reduce = gfc_build_library_function_decl_with_spec ( |
3647 | get_identifier (PREFIX("caf_co_reduce")), "W.R.WW", | |
3648 | void_type_node, 8, pvoid_type_node, | |
3649 | build_pointer_type (build_varargs_function_type_list (void_type_node, | |
3650 | NULL_TREE)), | |
3651 | integer_type_node, integer_type_node, pint_type, pchar_type_node, | |
3652 | integer_type_node, integer_type_node); | |
3653 | ||
79ed4a8e | 3654 | gfor_fndecl_co_sum = gfc_build_library_function_decl_with_spec ( |
5f4a118e | 3655 | get_identifier (PREFIX("caf_co_sum")), "W.WW", |
3656 | void_type_node, 5, pvoid_type_node, integer_type_node, | |
79ed4a8e | 3657 | pint_type, pchar_type_node, integer_type_node); |
70b5944a | 3658 | } |
3659 | ||
4ee9c684 | 3660 | gfc_build_intrinsic_function_decls (); |
3661 | gfc_build_intrinsic_lib_fndecls (); | |
3662 | gfc_build_io_library_fndecls (); | |
3663 | } | |
3664 | ||
3665 | ||
231e961a | 3666 | /* Evaluate the length of dummy character variables. */ |
4ee9c684 | 3667 | |
c5faa799 | 3668 | static void |
3669 | gfc_trans_dummy_character (gfc_symbol *sym, gfc_charlen *cl, | |
3670 | gfc_wrapped_block *block) | |
4ee9c684 | 3671 | { |
c5faa799 | 3672 | stmtblock_t init; |
4ee9c684 | 3673 | |
b9c7fce7 | 3674 | gfc_finish_decl (cl->backend_decl); |
4ee9c684 | 3675 | |
c5faa799 | 3676 | gfc_start_block (&init); |
4ee9c684 | 3677 | |
3678 | /* Evaluate the string length expression. */ | |
c5faa799 | 3679 | gfc_conv_string_length (cl, NULL, &init); |
d4163395 | 3680 | |
c5faa799 | 3681 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3682 | |
c5faa799 | 3683 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3684 | } |
3685 | ||
3686 | ||
3687 | /* Allocate and cleanup an automatic character variable. */ | |
3688 | ||
c5faa799 | 3689 | static void |
3690 | gfc_trans_auto_character_variable (gfc_symbol * sym, gfc_wrapped_block * block) | |
4ee9c684 | 3691 | { |
c5faa799 | 3692 | stmtblock_t init; |
4ee9c684 | 3693 | tree decl; |
4ee9c684 | 3694 | tree tmp; |
3695 | ||
22d678e8 | 3696 | gcc_assert (sym->backend_decl); |
eeebe20b | 3697 | gcc_assert (sym->ts.u.cl && sym->ts.u.cl->length); |
4ee9c684 | 3698 | |
3714c8b6 | 3699 | gfc_init_block (&init); |
4ee9c684 | 3700 | |
3701 | /* Evaluate the string length expression. */ | |
c5faa799 | 3702 | gfc_conv_string_length (sym->ts.u.cl, NULL, &init); |
4ee9c684 | 3703 | |
c5faa799 | 3704 | gfc_trans_vla_type_sizes (sym, &init); |
d4163395 | 3705 | |
4ee9c684 | 3706 | decl = sym->backend_decl; |
3707 | ||
afcf285e | 3708 | /* Emit a DECL_EXPR for this variable, which will cause the |
4b3a701c | 3709 | gimplifier to allocate storage, and all that good stuff. */ |
fd779e1d | 3710 | tmp = fold_build1_loc (input_location, DECL_EXPR, TREE_TYPE (decl), decl); |
c5faa799 | 3711 | gfc_add_expr_to_block (&init, tmp); |
afcf285e | 3712 | |
c5faa799 | 3713 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
4ee9c684 | 3714 | } |
3715 | ||
c8f1568f | 3716 | /* Set the initial value of ASSIGN statement auxiliary variable explicitly. */ |
3717 | ||
c5faa799 | 3718 | static void |
3719 | gfc_trans_assign_aux_var (gfc_symbol * sym, gfc_wrapped_block * block) | |
c8f1568f | 3720 | { |
c5faa799 | 3721 | stmtblock_t init; |
c8f1568f | 3722 | |
3723 | gcc_assert (sym->backend_decl); | |
c5faa799 | 3724 | gfc_start_block (&init); |
c8f1568f | 3725 | |
3726 | /* Set the initial value to length. See the comments in | |
3727 | function gfc_add_assign_aux_vars in this file. */ | |
c5faa799 | 3728 | gfc_add_modify (&init, GFC_DECL_STRING_LEN (sym->backend_decl), |
35bf1214 | 3729 | build_int_cst (gfc_charlen_type_node, -2)); |
c8f1568f | 3730 | |
c5faa799 | 3731 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
c8f1568f | 3732 | } |
3733 | ||
d4163395 | 3734 | static void |
3735 | gfc_trans_vla_one_sizepos (tree *tp, stmtblock_t *body) | |
3736 | { | |
3737 | tree t = *tp, var, val; | |
3738 | ||
3739 | if (t == NULL || t == error_mark_node) | |
3740 | return; | |
3741 | if (TREE_CONSTANT (t) || DECL_P (t)) | |
3742 | return; | |
3743 | ||
3744 | if (TREE_CODE (t) == SAVE_EXPR) | |
3745 | { | |
3746 | if (SAVE_EXPR_RESOLVED_P (t)) | |
3747 | { | |
3748 | *tp = TREE_OPERAND (t, 0); | |
3749 | return; | |
3750 | } | |
3751 | val = TREE_OPERAND (t, 0); | |
3752 | } | |
3753 | else | |
3754 | val = t; | |
3755 | ||
3756 | var = gfc_create_var_np (TREE_TYPE (t), NULL); | |
3757 | gfc_add_decl_to_function (var); | |
1ec957b0 | 3758 | gfc_add_modify (body, var, unshare_expr (val)); |
d4163395 | 3759 | if (TREE_CODE (t) == SAVE_EXPR) |
3760 | TREE_OPERAND (t, 0) = var; | |
3761 | *tp = var; | |
3762 | } | |
3763 | ||
3764 | static void | |
3765 | gfc_trans_vla_type_sizes_1 (tree type, stmtblock_t *body) | |
3766 | { | |
3767 | tree t; | |
3768 | ||
3769 | if (type == NULL || type == error_mark_node) | |
3770 | return; | |
3771 | ||
3772 | type = TYPE_MAIN_VARIANT (type); | |
3773 | ||
3774 | if (TREE_CODE (type) == INTEGER_TYPE) | |
3775 | { | |
3776 | gfc_trans_vla_one_sizepos (&TYPE_MIN_VALUE (type), body); | |
3777 | gfc_trans_vla_one_sizepos (&TYPE_MAX_VALUE (type), body); | |
3778 | ||
3779 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3780 | { | |
3781 | TYPE_MIN_VALUE (t) = TYPE_MIN_VALUE (type); | |
3782 | TYPE_MAX_VALUE (t) = TYPE_MAX_VALUE (type); | |
3783 | } | |
3784 | } | |
3785 | else if (TREE_CODE (type) == ARRAY_TYPE) | |
3786 | { | |
3787 | gfc_trans_vla_type_sizes_1 (TREE_TYPE (type), body); | |
3788 | gfc_trans_vla_type_sizes_1 (TYPE_DOMAIN (type), body); | |
3789 | gfc_trans_vla_one_sizepos (&TYPE_SIZE (type), body); | |
3790 | gfc_trans_vla_one_sizepos (&TYPE_SIZE_UNIT (type), body); | |
3791 | ||
3792 | for (t = TYPE_NEXT_VARIANT (type); t; t = TYPE_NEXT_VARIANT (t)) | |
3793 | { | |
3794 | TYPE_SIZE (t) = TYPE_SIZE (type); | |
3795 | TYPE_SIZE_UNIT (t) = TYPE_SIZE_UNIT (type); | |
3796 | } | |
3797 | } | |
3798 | } | |
3799 | ||
3800 | /* Make sure all type sizes and array domains are either constant, | |
3801 | or variable or parameter decls. This is a simplified variant | |
3802 | of gimplify_type_sizes, but we can't use it here, as none of the | |
3803 | variables in the expressions have been gimplified yet. | |
3804 | As type sizes and domains for various variable length arrays | |
3805 | contain VAR_DECLs that are only initialized at gfc_trans_deferred_vars | |
3806 | time, without this routine gimplify_type_sizes in the middle-end | |
3807 | could result in the type sizes being gimplified earlier than where | |
3808 | those variables are initialized. */ | |
3809 | ||
3810 | void | |
3811 | gfc_trans_vla_type_sizes (gfc_symbol *sym, stmtblock_t *body) | |
3812 | { | |
3813 | tree type = TREE_TYPE (sym->backend_decl); | |
3814 | ||
3815 | if (TREE_CODE (type) == FUNCTION_TYPE | |
3816 | && (sym->attr.function || sym->attr.result || sym->attr.entry)) | |
3817 | { | |
3818 | if (! current_fake_result_decl) | |
3819 | return; | |
3820 | ||
3821 | type = TREE_TYPE (TREE_VALUE (current_fake_result_decl)); | |
3822 | } | |
3823 | ||
3824 | while (POINTER_TYPE_P (type)) | |
3825 | type = TREE_TYPE (type); | |
3826 | ||
3827 | if (GFC_DESCRIPTOR_TYPE_P (type)) | |
3828 | { | |
3829 | tree etype = GFC_TYPE_ARRAY_DATAPTR_TYPE (type); | |
3830 | ||
3831 | while (POINTER_TYPE_P (etype)) | |
3832 | etype = TREE_TYPE (etype); | |
3833 | ||
3834 | gfc_trans_vla_type_sizes_1 (etype, body); | |
3835 | } | |
3836 | ||
3837 | gfc_trans_vla_type_sizes_1 (type, body); | |
3838 | } | |
3839 | ||
4ee9c684 | 3840 | |
f0d4969f | 3841 | /* Initialize a derived type by building an lvalue from the symbol |
a545a8f8 | 3842 | and using trans_assignment to do the work. Set dealloc to false |
3843 | if no deallocation prior the assignment is needed. */ | |
c5faa799 | 3844 | void |
3845 | gfc_init_default_dt (gfc_symbol * sym, stmtblock_t * block, bool dealloc) | |
87114d2e | 3846 | { |
f0d4969f | 3847 | gfc_expr *e; |
87114d2e | 3848 | tree tmp; |
3849 | tree present; | |
3850 | ||
c5faa799 | 3851 | gcc_assert (block); |
3852 | ||
f0d4969f | 3853 | gcc_assert (!sym->attr.allocatable); |
3854 | gfc_set_sym_referenced (sym); | |
3855 | e = gfc_lval_expr_from_sym (sym); | |
a545a8f8 | 3856 | tmp = gfc_trans_assignment (e, sym->value, false, dealloc); |
c38054a8 | 3857 | if (sym->attr.dummy && (sym->attr.optional |
3858 | || sym->ns->proc_name->attr.entry_master)) | |
87114d2e | 3859 | { |
f0d4969f | 3860 | present = gfc_conv_expr_present (sym); |
2be9d8f1 | 3861 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), present, |
3862 | tmp, build_empty_stmt (input_location)); | |
87114d2e | 3863 | } |
c5faa799 | 3864 | gfc_add_expr_to_block (block, tmp); |
f0d4969f | 3865 | gfc_free_expr (e); |
87114d2e | 3866 | } |
3867 | ||
3868 | ||
8714fc76 | 3869 | /* Initialize INTENT(OUT) derived type dummies. As well as giving |
3870 | them their default initializer, if they do not have allocatable | |
293d72e0 | 3871 | components, they have their allocatable components deallocated. */ |
8714fc76 | 3872 | |
c5faa799 | 3873 | static void |
3874 | init_intent_out_dt (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
f0d4969f | 3875 | { |
c5faa799 | 3876 | stmtblock_t init; |
f0d4969f | 3877 | gfc_formal_arglist *f; |
8714fc76 | 3878 | tree tmp; |
5907c3ea | 3879 | tree present; |
f0d4969f | 3880 | |
c5faa799 | 3881 | gfc_init_block (&init); |
6777213b | 3882 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
f0d4969f | 3883 | if (f->sym && f->sym->attr.intent == INTENT_OUT |
c49db15e | 3884 | && !f->sym->attr.pointer |
3885 | && f->sym->ts.type == BT_DERIVED) | |
8714fc76 | 3886 | { |
942ba353 | 3887 | tmp = NULL_TREE; |
3888 | ||
3889 | /* Note: Allocatables are excluded as they are already handled | |
3890 | by the caller. */ | |
3891 | if (!f->sym->attr.allocatable | |
3892 | && gfc_is_finalizable (f->sym->ts.u.derived, NULL)) | |
8714fc76 | 3893 | { |
942ba353 | 3894 | stmtblock_t block; |
3895 | gfc_expr *e; | |
3896 | ||
3897 | gfc_init_block (&block); | |
3898 | f->sym->attr.referenced = 1; | |
3899 | e = gfc_lval_expr_from_sym (f->sym); | |
3900 | gfc_add_finalizer_call (&block, e); | |
3901 | gfc_free_expr (e); | |
3902 | tmp = gfc_finish_block (&block); | |
3903 | } | |
5907c3ea | 3904 | |
942ba353 | 3905 | if (tmp == NULL_TREE && !f->sym->attr.allocatable |
3906 | && f->sym->ts.u.derived->attr.alloc_comp && !f->sym->value) | |
3907 | tmp = gfc_deallocate_alloc_comp (f->sym->ts.u.derived, | |
3908 | f->sym->backend_decl, | |
3909 | f->sym->as ? f->sym->as->rank : 0); | |
5907c3ea | 3910 | |
942ba353 | 3911 | if (tmp != NULL_TREE && (f->sym->attr.optional |
3912 | || f->sym->ns->proc_name->attr.entry_master)) | |
3913 | { | |
3914 | present = gfc_conv_expr_present (f->sym); | |
3915 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
3916 | present, tmp, build_empty_stmt (input_location)); | |
8714fc76 | 3917 | } |
942ba353 | 3918 | |
3919 | if (tmp != NULL_TREE) | |
3920 | gfc_add_expr_to_block (&init, tmp); | |
3921 | else if (f->sym->value && !f->sym->attr.allocatable) | |
c5faa799 | 3922 | gfc_init_default_dt (f->sym, &init, true); |
8714fc76 | 3923 | } |
c56d57d6 | 3924 | else if (f->sym && f->sym->attr.intent == INTENT_OUT |
3925 | && f->sym->ts.type == BT_CLASS | |
3926 | && !CLASS_DATA (f->sym)->attr.class_pointer | |
942ba353 | 3927 | && !CLASS_DATA (f->sym)->attr.allocatable) |
c56d57d6 | 3928 | { |
942ba353 | 3929 | stmtblock_t block; |
3930 | gfc_expr *e; | |
3931 | ||
3932 | gfc_init_block (&block); | |
3933 | f->sym->attr.referenced = 1; | |
3934 | e = gfc_lval_expr_from_sym (f->sym); | |
3935 | gfc_add_finalizer_call (&block, e); | |
3936 | gfc_free_expr (e); | |
3937 | tmp = gfc_finish_block (&block); | |
c56d57d6 | 3938 | |
3939 | if (f->sym->attr.optional || f->sym->ns->proc_name->attr.entry_master) | |
3940 | { | |
3941 | present = gfc_conv_expr_present (f->sym); | |
3942 | tmp = build3_loc (input_location, COND_EXPR, TREE_TYPE (tmp), | |
3943 | present, tmp, | |
3944 | build_empty_stmt (input_location)); | |
3945 | } | |
3946 | ||
3947 | gfc_add_expr_to_block (&init, tmp); | |
3948 | } | |
f0d4969f | 3949 | |
c5faa799 | 3950 | gfc_add_init_cleanup (block, gfc_finish_block (&init), NULL_TREE); |
f0d4969f | 3951 | } |
3952 | ||
87114d2e | 3953 | |
b345a09f | 3954 | /* Helper function to manage deferred string lengths. */ |
3955 | ||
3956 | static tree | |
3957 | gfc_null_and_pass_deferred_len (gfc_symbol *sym, stmtblock_t *init, | |
3958 | locus *loc) | |
3959 | { | |
3960 | tree tmp; | |
3961 | ||
3962 | /* Character length passed by reference. */ | |
3963 | tmp = sym->ts.u.cl->passed_length; | |
3964 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
3965 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
3966 | ||
3967 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) | |
3968 | /* Zero the string length when entering the scope. */ | |
3969 | gfc_add_modify (init, sym->ts.u.cl->backend_decl, | |
3970 | build_int_cst (gfc_charlen_type_node, 0)); | |
3971 | else | |
3972 | { | |
3973 | tree tmp2; | |
3974 | ||
3975 | tmp2 = fold_build2_loc (input_location, MODIFY_EXPR, | |
3976 | gfc_charlen_type_node, | |
3977 | sym->ts.u.cl->backend_decl, tmp); | |
3978 | if (sym->attr.optional) | |
3979 | { | |
3980 | tree present = gfc_conv_expr_present (sym); | |
3981 | tmp2 = build3_loc (input_location, COND_EXPR, | |
3982 | void_type_node, present, tmp2, | |
3983 | build_empty_stmt (input_location)); | |
3984 | } | |
3985 | gfc_add_expr_to_block (init, tmp2); | |
3986 | } | |
3987 | ||
3988 | gfc_restore_backend_locus (loc); | |
3989 | ||
3990 | /* Pass the final character length back. */ | |
3991 | if (sym->attr.intent != INTENT_IN) | |
3992 | { | |
3993 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
3994 | gfc_charlen_type_node, tmp, | |
3995 | sym->ts.u.cl->backend_decl); | |
3996 | if (sym->attr.optional) | |
3997 | { | |
3998 | tree present = gfc_conv_expr_present (sym); | |
3999 | tmp = build3_loc (input_location, COND_EXPR, | |
4000 | void_type_node, present, tmp, | |
4001 | build_empty_stmt (input_location)); | |
4002 | } | |
4003 | } | |
4004 | else | |
4005 | tmp = NULL_TREE; | |
4006 | ||
4007 | return tmp; | |
4008 | } | |
4009 | ||
4ee9c684 | 4010 | /* Generate function entry and exit code, and add it to the function body. |
4011 | This includes: | |
f888a3fb | 4012 | Allocation and initialization of array variables. |
4ee9c684 | 4013 | Allocation of character string variables. |
c8f1568f | 4014 | Initialization and possibly repacking of dummy arrays. |
0a96a7cc | 4015 | Initialization of ASSIGN statement auxiliary variable. |
8f3f9eab | 4016 | Initialization of ASSOCIATE names. |
0a96a7cc | 4017 | Automatic deallocation. */ |
4ee9c684 | 4018 | |
89ac8ba1 | 4019 | void |
4020 | gfc_trans_deferred_vars (gfc_symbol * proc_sym, gfc_wrapped_block * block) | |
4ee9c684 | 4021 | { |
4022 | locus loc; | |
4023 | gfc_symbol *sym; | |
d4163395 | 4024 | gfc_formal_arglist *f; |
c5faa799 | 4025 | stmtblock_t tmpblock; |
25dd7350 | 4026 | bool seen_trans_deferred_array = false; |
617125a6 | 4027 | tree tmp = NULL; |
4028 | gfc_expr *e; | |
4029 | gfc_se se; | |
4030 | stmtblock_t init; | |
4ee9c684 | 4031 | |
4032 | /* Deal with implicit return variables. Explicit return variables will | |
4033 | already have been added. */ | |
4034 | if (gfc_return_by_reference (proc_sym) && proc_sym->result == proc_sym) | |
4035 | { | |
4036 | if (!current_fake_result_decl) | |
4037 | { | |
c6871095 | 4038 | gfc_entry_list *el = NULL; |
4039 | if (proc_sym->attr.entry_master) | |
4040 | { | |
4041 | for (el = proc_sym->ns->entries; el; el = el->next) | |
4042 | if (el->sym != el->sym->result) | |
4043 | break; | |
4044 | } | |
fa7b6574 | 4045 | /* TODO: move to the appropriate place in resolve.c. */ |
4046 | if (warn_return_type && el == NULL) | |
4166acc7 | 4047 | gfc_warning (OPT_Wreturn_type, |
4048 | "Return value of function %qs at %L not set", | |
fa7b6574 | 4049 | proc_sym->name, &proc_sym->declared_at); |
4ee9c684 | 4050 | } |
c6871095 | 4051 | else if (proc_sym->as) |
4ee9c684 | 4052 | { |
d4163395 | 4053 | tree result = TREE_VALUE (current_fake_result_decl); |
89ac8ba1 | 4054 | gfc_trans_dummy_array_bias (proc_sym, result, block); |
10b07432 | 4055 | |
4056 | /* An automatic character length, pointer array result. */ | |
4057 | if (proc_sym->ts.type == BT_CHARACTER | |
eeebe20b | 4058 | && TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) |
b345a09f | 4059 | { |
4060 | tmp = NULL; | |
4061 | if (proc_sym->ts.deferred) | |
4062 | { | |
4063 | gfc_save_backend_locus (&loc); | |
4064 | gfc_set_backend_locus (&proc_sym->declared_at); | |
4065 | gfc_start_block (&init); | |
4066 | tmp = gfc_null_and_pass_deferred_len (proc_sym, &init, &loc); | |
4067 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4068 | } | |
4069 | else | |
4070 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); | |
4071 | } | |
4ee9c684 | 4072 | } |
4073 | else if (proc_sym->ts.type == BT_CHARACTER) | |
4074 | { | |
617125a6 | 4075 | if (proc_sym->ts.deferred) |
4076 | { | |
4077 | tmp = NULL; | |
da2c4122 | 4078 | gfc_save_backend_locus (&loc); |
4079 | gfc_set_backend_locus (&proc_sym->declared_at); | |
617125a6 | 4080 | gfc_start_block (&init); |
4081 | /* Zero the string length on entry. */ | |
4082 | gfc_add_modify (&init, proc_sym->ts.u.cl->backend_decl, | |
4083 | build_int_cst (gfc_charlen_type_node, 0)); | |
4084 | /* Null the pointer. */ | |
4085 | e = gfc_lval_expr_from_sym (proc_sym); | |
4086 | gfc_init_se (&se, NULL); | |
4087 | se.want_pointer = 1; | |
4088 | gfc_conv_expr (&se, e); | |
4089 | gfc_free_expr (e); | |
4090 | tmp = se.expr; | |
4091 | gfc_add_modify (&init, tmp, | |
4092 | fold_convert (TREE_TYPE (se.expr), | |
4093 | null_pointer_node)); | |
da2c4122 | 4094 | gfc_restore_backend_locus (&loc); |
617125a6 | 4095 | |
4096 | /* Pass back the string length on exit. */ | |
ddcfeaf1 | 4097 | tmp = proc_sym->ts.u.cl->backend_decl; |
b345a09f | 4098 | if (TREE_CODE (tmp) != INDIRECT_REF |
4099 | && proc_sym->ts.u.cl->passed_length) | |
ddcfeaf1 | 4100 | { |
a4731200 | 4101 | tmp = proc_sym->ts.u.cl->passed_length; |
4102 | tmp = build_fold_indirect_ref_loc (input_location, tmp); | |
4103 | tmp = fold_convert (gfc_charlen_type_node, tmp); | |
4104 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, | |
4105 | gfc_charlen_type_node, tmp, | |
4106 | proc_sym->ts.u.cl->backend_decl); | |
ddcfeaf1 | 4107 | } |
4108 | else | |
4109 | tmp = NULL_TREE; | |
4110 | ||
617125a6 | 4111 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4112 | } | |
4113 | else if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == VAR_DECL) | |
89ac8ba1 | 4114 | gfc_trans_dummy_character (proc_sym, proc_sym->ts.u.cl, block); |
4ee9c684 | 4115 | } |
4116 | else | |
829d7a08 | 4117 | gcc_assert (flag_f2c && proc_sym->ts.type == BT_COMPLEX); |
4ee9c684 | 4118 | } |
4119 | ||
87114d2e | 4120 | /* Initialize the INTENT(OUT) derived type dummy arguments. This |
4121 | should be done here so that the offsets and lbounds of arrays | |
4122 | are available. */ | |
da2c4122 | 4123 | gfc_save_backend_locus (&loc); |
4124 | gfc_set_backend_locus (&proc_sym->declared_at); | |
89ac8ba1 | 4125 | init_intent_out_dt (proc_sym, block); |
da2c4122 | 4126 | gfc_restore_backend_locus (&loc); |
87114d2e | 4127 | |
4ee9c684 | 4128 | for (sym = proc_sym->tlink; sym != proc_sym; sym = sym->tlink) |
4129 | { | |
6b3ceb4e | 4130 | bool alloc_comp_or_fini = (sym->ts.type == BT_DERIVED) |
4131 | && (sym->ts.u.derived->attr.alloc_comp | |
4132 | || gfc_is_finalizable (sym->ts.u.derived, | |
4133 | NULL)); | |
8f3f9eab | 4134 | if (sym->assoc) |
3c82e013 | 4135 | continue; |
4136 | ||
a56d63bc | 4137 | if (sym->attr.subref_array_pointer |
4138 | && GFC_DECL_SPAN (sym->backend_decl) | |
4139 | && !TREE_STATIC (GFC_DECL_SPAN (sym->backend_decl))) | |
4140 | { | |
4141 | gfc_init_block (&tmpblock); | |
4142 | gfc_add_modify (&tmpblock, GFC_DECL_SPAN (sym->backend_decl), | |
4143 | build_int_cst (gfc_array_index_type, 0)); | |
4144 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
4145 | NULL_TREE); | |
4146 | } | |
4147 | ||
85ae3cab | 4148 | if (sym->ts.type == BT_CLASS |
eb106faf | 4149 | && (sym->attr.save || flag_max_stack_var_size == 0) |
fb139b21 | 4150 | && CLASS_DATA (sym)->attr.allocatable) |
4151 | { | |
4152 | tree vptr; | |
4153 | ||
4154 | if (UNLIMITED_POLY (sym)) | |
4155 | vptr = null_pointer_node; | |
4156 | else | |
4157 | { | |
4158 | gfc_symbol *vsym; | |
4159 | vsym = gfc_find_derived_vtab (sym->ts.u.derived); | |
4160 | vptr = gfc_get_symbol_decl (vsym); | |
4161 | vptr = gfc_build_addr_expr (NULL, vptr); | |
4162 | } | |
4163 | ||
4164 | if (CLASS_DATA (sym)->attr.dimension | |
4165 | || (CLASS_DATA (sym)->attr.codimension | |
4fe73152 | 4166 | && flag_coarray != GFC_FCOARRAY_LIB)) |
fb139b21 | 4167 | { |
4168 | tmp = gfc_class_data_get (sym->backend_decl); | |
4169 | tmp = gfc_build_null_descriptor (TREE_TYPE (tmp)); | |
4170 | } | |
4171 | else | |
4172 | tmp = null_pointer_node; | |
4173 | ||
4174 | DECL_INITIAL (sym->backend_decl) | |
4175 | = gfc_class_set_static_fields (sym->backend_decl, vptr, tmp); | |
4176 | TREE_CONSTANT (DECL_INITIAL (sym->backend_decl)) = 1; | |
4177 | } | |
b345a09f | 4178 | else if ((sym->attr.dimension || sym->attr.codimension |
4179 | || (IS_CLASS_ARRAY (sym) && !CLASS_DATA (sym)->attr.allocatable))) | |
4ee9c684 | 4180 | { |
c6793847 | 4181 | bool is_classarray = IS_CLASS_ARRAY (sym); |
4182 | symbol_attribute *array_attr; | |
4183 | gfc_array_spec *as; | |
b345a09f | 4184 | array_type type_of_array; |
c6793847 | 4185 | |
4186 | array_attr = is_classarray ? &CLASS_DATA (sym)->attr : &sym->attr; | |
4187 | as = is_classarray ? CLASS_DATA (sym)->as : sym->as; | |
4188 | /* Assumed-size Cray pointees need to be treated as AS_EXPLICIT. */ | |
b345a09f | 4189 | type_of_array = as->type; |
4190 | if (type_of_array == AS_ASSUMED_SIZE && as->cp_was_assumed) | |
4191 | type_of_array = AS_EXPLICIT; | |
4192 | switch (type_of_array) | |
4ee9c684 | 4193 | { |
4194 | case AS_EXPLICIT: | |
4195 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4196 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
c6793847 | 4197 | /* Allocatable and pointer arrays need to processed |
4198 | explicitly. */ | |
4199 | else if ((sym->ts.type != BT_CLASS && sym->attr.pointer) | |
4200 | || (sym->ts.type == BT_CLASS | |
4201 | && CLASS_DATA (sym)->attr.class_pointer) | |
4202 | || array_attr->allocatable) | |
4ee9c684 | 4203 | { |
4204 | if (TREE_STATIC (sym->backend_decl)) | |
da2c4122 | 4205 | { |
4206 | gfc_save_backend_locus (&loc); | |
4207 | gfc_set_backend_locus (&sym->declared_at); | |
4208 | gfc_trans_static_array_pointer (sym); | |
4209 | gfc_restore_backend_locus (&loc); | |
4210 | } | |
4ee9c684 | 4211 | else |
25dd7350 | 4212 | { |
4213 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4214 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4215 | } |
4ee9c684 | 4216 | } |
c6793847 | 4217 | else if (sym->attr.codimension |
4218 | && TREE_STATIC (sym->backend_decl)) | |
7c7db7f6 | 4219 | { |
4220 | gfc_init_block (&tmpblock); | |
4221 | gfc_trans_array_cobounds (TREE_TYPE (sym->backend_decl), | |
4222 | &tmpblock, sym); | |
4223 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), | |
4224 | NULL_TREE); | |
4225 | continue; | |
4226 | } | |
197423f5 | 4227 | else |
4ee9c684 | 4228 | { |
da2c4122 | 4229 | gfc_save_backend_locus (&loc); |
4230 | gfc_set_backend_locus (&sym->declared_at); | |
4231 | ||
6b3ceb4e | 4232 | if (alloc_comp_or_fini) |
25dd7350 | 4233 | { |
4234 | seen_trans_deferred_array = true; | |
89ac8ba1 | 4235 | gfc_trans_deferred_array (sym, block); |
25dd7350 | 4236 | } |
f0d4969f | 4237 | else if (sym->ts.type == BT_DERIVED |
4238 | && sym->value | |
4239 | && !sym->attr.data | |
4240 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4241 | { |
4242 | gfc_start_block (&tmpblock); | |
4243 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4244 | gfc_add_init_cleanup (block, |
c5faa799 | 4245 | gfc_finish_block (&tmpblock), |
4246 | NULL_TREE); | |
4247 | } | |
25dd7350 | 4248 | |
c5faa799 | 4249 | gfc_trans_auto_array_allocation (sym->backend_decl, |
89ac8ba1 | 4250 | sym, block); |
4671339c | 4251 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4252 | } |
4253 | break; | |
4254 | ||
4255 | case AS_ASSUMED_SIZE: | |
4256 | /* Must be a dummy parameter. */ | |
c6793847 | 4257 | gcc_assert (sym->attr.dummy || as->cp_was_assumed); |
4ee9c684 | 4258 | |
4259 | /* We should always pass assumed size arrays the g77 way. */ | |
452695a8 | 4260 | if (sym->attr.dummy) |
89ac8ba1 | 4261 | gfc_trans_g77_array (sym, block); |
c5faa799 | 4262 | break; |
4ee9c684 | 4263 | |
4264 | case AS_ASSUMED_SHAPE: | |
4265 | /* Must be a dummy parameter. */ | |
22d678e8 | 4266 | gcc_assert (sym->attr.dummy); |
4ee9c684 | 4267 | |
89ac8ba1 | 4268 | gfc_trans_dummy_array_bias (sym, sym->backend_decl, block); |
4ee9c684 | 4269 | break; |
4270 | ||
f00f6dd6 | 4271 | case AS_ASSUMED_RANK: |
4ee9c684 | 4272 | case AS_DEFERRED: |
25dd7350 | 4273 | seen_trans_deferred_array = true; |
89ac8ba1 | 4274 | gfc_trans_deferred_array (sym, block); |
b345a09f | 4275 | if (sym->ts.type == BT_CHARACTER && sym->ts.deferred |
4276 | && sym->attr.result) | |
4277 | { | |
4278 | gfc_start_block (&init); | |
4279 | gfc_save_backend_locus (&loc); | |
4280 | gfc_set_backend_locus (&sym->declared_at); | |
4281 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
4282 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); | |
4283 | } | |
4ee9c684 | 4284 | break; |
4285 | ||
4286 | default: | |
22d678e8 | 4287 | gcc_unreachable (); |
4ee9c684 | 4288 | } |
6b3ceb4e | 4289 | if (alloc_comp_or_fini && !seen_trans_deferred_array) |
89ac8ba1 | 4290 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4291 | } |
fd23cc08 | 4292 | else if ((!sym->attr.dummy || sym->ts.deferred) |
4293 | && (sym->ts.type == BT_CLASS | |
3a19c063 | 4294 | && CLASS_DATA (sym)->attr.class_pointer)) |
2930c007 | 4295 | continue; |
617125a6 | 4296 | else if ((!sym->attr.dummy || sym->ts.deferred) |
456dd7d6 | 4297 | && (sym->attr.allocatable |
b345a09f | 4298 | || (sym->attr.pointer && sym->attr.result) |
456dd7d6 | 4299 | || (sym->ts.type == BT_CLASS |
4300 | && CLASS_DATA (sym)->attr.allocatable))) | |
0a96a7cc | 4301 | { |
eb106faf | 4302 | if (!sym->attr.save && flag_max_stack_var_size != 0) |
908e9973 | 4303 | { |
d0d776fb | 4304 | tree descriptor = NULL_TREE; |
4305 | ||
da2c4122 | 4306 | gfc_save_backend_locus (&loc); |
4307 | gfc_set_backend_locus (&sym->declared_at); | |
c5faa799 | 4308 | gfc_start_block (&init); |
617125a6 | 4309 | |
b345a09f | 4310 | if (!sym->attr.pointer) |
617125a6 | 4311 | { |
b345a09f | 4312 | /* Nullify and automatic deallocation of allocatable |
4313 | scalars. */ | |
4314 | e = gfc_lval_expr_from_sym (sym); | |
4315 | if (sym->ts.type == BT_CLASS) | |
4316 | gfc_add_data_component (e); | |
4317 | ||
4318 | gfc_init_se (&se, NULL); | |
4319 | if (sym->ts.type != BT_CLASS | |
4320 | || sym->ts.u.derived->attr.dimension | |
4321 | || sym->ts.u.derived->attr.codimension) | |
883d6776 | 4322 | { |
b345a09f | 4323 | se.want_pointer = 1; |
4324 | gfc_conv_expr (&se, e); | |
4325 | } | |
4326 | else if (sym->ts.type == BT_CLASS | |
4327 | && !CLASS_DATA (sym)->attr.dimension | |
4328 | && !CLASS_DATA (sym)->attr.codimension) | |
4329 | { | |
4330 | se.want_pointer = 1; | |
4331 | gfc_conv_expr (&se, e); | |
883d6776 | 4332 | } |
617125a6 | 4333 | else |
883d6776 | 4334 | { |
b345a09f | 4335 | se.descriptor_only = 1; |
4336 | gfc_conv_expr (&se, e); | |
4337 | descriptor = se.expr; | |
4338 | se.expr = gfc_conv_descriptor_data_addr (se.expr); | |
4339 | se.expr = build_fold_indirect_ref_loc (input_location, se.expr); | |
883d6776 | 4340 | } |
b345a09f | 4341 | gfc_free_expr (e); |
617125a6 | 4342 | |
b345a09f | 4343 | if (!sym->attr.dummy || sym->attr.intent == INTENT_OUT) |
883d6776 | 4344 | { |
b345a09f | 4345 | /* Nullify when entering the scope. */ |
883d6776 | 4346 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, |
b345a09f | 4347 | TREE_TYPE (se.expr), se.expr, |
4348 | fold_convert (TREE_TYPE (se.expr), | |
4349 | null_pointer_node)); | |
883d6776 | 4350 | if (sym->attr.optional) |
4351 | { | |
4352 | tree present = gfc_conv_expr_present (sym); | |
4353 | tmp = build3_loc (input_location, COND_EXPR, | |
4354 | void_type_node, present, tmp, | |
4355 | build_empty_stmt (input_location)); | |
4356 | } | |
b345a09f | 4357 | gfc_add_expr_to_block (&init, tmp); |
883d6776 | 4358 | } |
617125a6 | 4359 | } |
b345a09f | 4360 | |
4361 | if ((sym->attr.dummy || sym->attr.result) | |
4362 | && sym->ts.type == BT_CHARACTER | |
4363 | && sym->ts.deferred | |
4364 | && sym->ts.u.cl->passed_length) | |
4365 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
da2c4122 | 4366 | else |
4367 | gfc_restore_backend_locus (&loc); | |
908e9973 | 4368 | |
4369 | /* Deallocate when leaving the scope. Nullifying is not | |
4370 | needed. */ | |
b345a09f | 4371 | if (!sym->attr.result && !sym->attr.dummy && !sym->attr.pointer |
afb69dbf | 4372 | && !sym->ns->proc_name->attr.is_main_program) |
d0d776fb | 4373 | { |
4374 | if (sym->ts.type == BT_CLASS | |
4375 | && CLASS_DATA (sym)->attr.codimension) | |
4376 | tmp = gfc_deallocate_with_status (descriptor, NULL_TREE, | |
4377 | NULL_TREE, NULL_TREE, | |
4378 | NULL_TREE, true, NULL, | |
4379 | true); | |
4380 | else | |
c23adf93 | 4381 | { |
4382 | gfc_expr *expr = gfc_lval_expr_from_sym (sym); | |
4383 | tmp = gfc_deallocate_scalar_with_status (se.expr, NULL_TREE, | |
4384 | true, expr, sym->ts); | |
4385 | gfc_free_expr (expr); | |
4386 | } | |
d0d776fb | 4387 | } |
b345a09f | 4388 | |
afc44c79 | 4389 | if (sym->ts.type == BT_CLASS) |
4390 | { | |
4391 | /* Initialize _vptr to declared type. */ | |
a90fe829 | 4392 | gfc_symbol *vtab; |
afc44c79 | 4393 | tree rhs; |
da2c4122 | 4394 | |
4395 | gfc_save_backend_locus (&loc); | |
4396 | gfc_set_backend_locus (&sym->declared_at); | |
afc44c79 | 4397 | e = gfc_lval_expr_from_sym (sym); |
4398 | gfc_add_vptr_component (e); | |
4399 | gfc_init_se (&se, NULL); | |
4400 | se.want_pointer = 1; | |
4401 | gfc_conv_expr (&se, e); | |
4402 | gfc_free_expr (e); | |
a90fe829 | 4403 | if (UNLIMITED_POLY (sym)) |
4404 | rhs = build_int_cst (TREE_TYPE (se.expr), 0); | |
4405 | else | |
4406 | { | |
4407 | vtab = gfc_find_derived_vtab (sym->ts.u.derived); | |
4408 | rhs = gfc_build_addr_expr (TREE_TYPE (se.expr), | |
4409 | gfc_get_symbol_decl (vtab)); | |
4410 | } | |
afc44c79 | 4411 | gfc_add_modify (&init, se.expr, rhs); |
da2c4122 | 4412 | gfc_restore_backend_locus (&loc); |
afc44c79 | 4413 | } |
4414 | ||
89ac8ba1 | 4415 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
908e9973 | 4416 | } |
0a96a7cc | 4417 | } |
617125a6 | 4418 | else if (sym->ts.type == BT_CHARACTER && sym->ts.deferred) |
4419 | { | |
4420 | tree tmp = NULL; | |
4421 | stmtblock_t init; | |
4422 | ||
4423 | /* If we get to here, all that should be left are pointers. */ | |
4424 | gcc_assert (sym->attr.pointer); | |
4425 | ||
4426 | if (sym->attr.dummy) | |
4427 | { | |
4428 | gfc_start_block (&init); | |
b345a09f | 4429 | gfc_save_backend_locus (&loc); |
4430 | gfc_set_backend_locus (&sym->declared_at); | |
4431 | tmp = gfc_null_and_pass_deferred_len (sym, &init, &loc); | |
617125a6 | 4432 | gfc_add_init_cleanup (block, gfc_finish_block (&init), tmp); |
4433 | } | |
4434 | } | |
3e715c81 | 4435 | else if (sym->ts.deferred) |
4436 | gfc_fatal_error ("Deferred type parameter not yet supported"); | |
6b3ceb4e | 4437 | else if (alloc_comp_or_fini) |
89ac8ba1 | 4438 | gfc_trans_deferred_array (sym, block); |
4ee9c684 | 4439 | else if (sym->ts.type == BT_CHARACTER) |
4440 | { | |
4671339c | 4441 | gfc_save_backend_locus (&loc); |
4ee9c684 | 4442 | gfc_set_backend_locus (&sym->declared_at); |
4443 | if (sym->attr.dummy || sym->attr.result) | |
89ac8ba1 | 4444 | gfc_trans_dummy_character (sym, sym->ts.u.cl, block); |
4ee9c684 | 4445 | else |
89ac8ba1 | 4446 | gfc_trans_auto_character_variable (sym, block); |
4671339c | 4447 | gfc_restore_backend_locus (&loc); |
4ee9c684 | 4448 | } |
c8f1568f | 4449 | else if (sym->attr.assign) |
4450 | { | |
4671339c | 4451 | gfc_save_backend_locus (&loc); |
c8f1568f | 4452 | gfc_set_backend_locus (&sym->declared_at); |
89ac8ba1 | 4453 | gfc_trans_assign_aux_var (sym, block); |
4671339c | 4454 | gfc_restore_backend_locus (&loc); |
c8f1568f | 4455 | } |
f0d4969f | 4456 | else if (sym->ts.type == BT_DERIVED |
4457 | && sym->value | |
4458 | && !sym->attr.data | |
4459 | && sym->attr.save == SAVE_NONE) | |
c5faa799 | 4460 | { |
4461 | gfc_start_block (&tmpblock); | |
4462 | gfc_init_default_dt (sym, &tmpblock, false); | |
89ac8ba1 | 4463 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), |
c5faa799 | 4464 | NULL_TREE); |
4465 | } | |
a90fe829 | 4466 | else if (!(UNLIMITED_POLY(sym))) |
22d678e8 | 4467 | gcc_unreachable (); |
4ee9c684 | 4468 | } |
4469 | ||
c5faa799 | 4470 | gfc_init_block (&tmpblock); |
d4163395 | 4471 | |
6777213b | 4472 | for (f = gfc_sym_get_dummy_args (proc_sym); f; f = f->next) |
1e853e89 | 4473 | { |
4474 | if (f->sym && f->sym->tlink == NULL && f->sym->ts.type == BT_CHARACTER) | |
4475 | { | |
eeebe20b | 4476 | gcc_assert (f->sym->ts.u.cl->backend_decl != NULL); |
4477 | if (TREE_CODE (f->sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4478 | gfc_trans_vla_type_sizes (f->sym, &tmpblock); |
1e853e89 | 4479 | } |
1e853e89 | 4480 | } |
d4163395 | 4481 | |
4482 | if (gfc_return_by_reference (proc_sym) && proc_sym->ts.type == BT_CHARACTER | |
4483 | && current_fake_result_decl != NULL) | |
4484 | { | |
eeebe20b | 4485 | gcc_assert (proc_sym->ts.u.cl->backend_decl != NULL); |
4486 | if (TREE_CODE (proc_sym->ts.u.cl->backend_decl) == PARM_DECL) | |
c5faa799 | 4487 | gfc_trans_vla_type_sizes (proc_sym, &tmpblock); |
d4163395 | 4488 | } |
4489 | ||
89ac8ba1 | 4490 | gfc_add_init_cleanup (block, gfc_finish_block (&tmpblock), NULL_TREE); |
4ee9c684 | 4491 | } |
4492 | ||
b345a09f | 4493 | |
b594087e | 4494 | struct module_hasher : ggc_ptr_hash<module_htab_entry> |
df4d540f | 4495 | { |
2ef51f0e | 4496 | typedef const char *compare_type; |
df4d540f | 4497 | |
2ef51f0e | 4498 | static hashval_t hash (module_htab_entry *s) { return htab_hash_string (s); } |
4499 | static bool | |
4500 | equal (module_htab_entry *a, const char *b) | |
4501 | { | |
4502 | return !strcmp (a->name, b); | |
4503 | } | |
4504 | }; | |
4505 | ||
4506 | static GTY (()) hash_table<module_hasher> *module_htab; | |
df4d540f | 4507 | |
4508 | /* Hash and equality functions for module_htab's decls. */ | |
4509 | ||
2ef51f0e | 4510 | hashval_t |
4511 | module_decl_hasher::hash (tree t) | |
df4d540f | 4512 | { |
df4d540f | 4513 | const_tree n = DECL_NAME (t); |
4514 | if (n == NULL_TREE) | |
4515 | n = TYPE_NAME (TREE_TYPE (t)); | |
8f1e8e0e | 4516 | return htab_hash_string (IDENTIFIER_POINTER (n)); |
df4d540f | 4517 | } |
4518 | ||
2ef51f0e | 4519 | bool |
4520 | module_decl_hasher::equal (tree t1, const char *x2) | |
df4d540f | 4521 | { |
df4d540f | 4522 | const_tree n1 = DECL_NAME (t1); |
4523 | if (n1 == NULL_TREE) | |
4524 | n1 = TYPE_NAME (TREE_TYPE (t1)); | |
2ef51f0e | 4525 | return strcmp (IDENTIFIER_POINTER (n1), x2) == 0; |
df4d540f | 4526 | } |
4527 | ||
4528 | struct module_htab_entry * | |
4529 | gfc_find_module (const char *name) | |
4530 | { | |
df4d540f | 4531 | if (! module_htab) |
2ef51f0e | 4532 | module_htab = hash_table<module_hasher>::create_ggc (10); |
df4d540f | 4533 | |
2ef51f0e | 4534 | module_htab_entry **slot |
4535 | = module_htab->find_slot_with_hash (name, htab_hash_string (name), INSERT); | |
df4d540f | 4536 | if (*slot == NULL) |
4537 | { | |
25a27413 | 4538 | module_htab_entry *entry = ggc_cleared_alloc<module_htab_entry> (); |
df4d540f | 4539 | |
4540 | entry->name = gfc_get_string (name); | |
2ef51f0e | 4541 | entry->decls = hash_table<module_decl_hasher>::create_ggc (10); |
4542 | *slot = entry; | |
df4d540f | 4543 | } |
2ef51f0e | 4544 | return *slot; |
df4d540f | 4545 | } |
4546 | ||
4547 | void | |
4548 | gfc_module_add_decl (struct module_htab_entry *entry, tree decl) | |
4549 | { | |
df4d540f | 4550 | const char *name; |
4551 | ||
4552 | if (DECL_NAME (decl)) | |
4553 | name = IDENTIFIER_POINTER (DECL_NAME (decl)); | |
4554 | else | |
4555 | { | |
4556 | gcc_assert (TREE_CODE (decl) == TYPE_DECL); | |
4557 | name = IDENTIFIER_POINTER (TYPE_NAME (TREE_TYPE (decl))); | |
4558 | } | |
2ef51f0e | 4559 | tree *slot |
4560 | = entry->decls->find_slot_with_hash (name, htab_hash_string (name), | |
4561 | INSERT); | |
df4d540f | 4562 | if (*slot == NULL) |
2ef51f0e | 4563 | *slot = decl; |
df4d540f | 4564 | } |
4565 | ||
c40a5c1b | 4566 | |
4567 | /* Generate debugging symbols for namelists. This function must come after | |
4568 | generate_local_decl to ensure that the variables in the namelist are | |
4569 | already declared. */ | |
4570 | ||
4571 | static tree | |
4572 | generate_namelist_decl (gfc_symbol * sym) | |
4573 | { | |
4574 | gfc_namelist *nml; | |
4575 | tree decl; | |
4576 | vec<constructor_elt, va_gc> *nml_decls = NULL; | |
4577 | ||
4578 | gcc_assert (sym->attr.flavor == FL_NAMELIST); | |
4579 | for (nml = sym->namelist; nml; nml = nml->next) | |
4580 | { | |
4581 | if (nml->sym->backend_decl == NULL_TREE) | |
4582 | { | |
4583 | nml->sym->attr.referenced = 1; | |
4584 | nml->sym->backend_decl = gfc_get_symbol_decl (nml->sym); | |
4585 | } | |
0a32260c | 4586 | DECL_IGNORED_P (nml->sym->backend_decl) = 0; |
c40a5c1b | 4587 | CONSTRUCTOR_APPEND_ELT (nml_decls, NULL_TREE, nml->sym->backend_decl); |
4588 | } | |
4589 | ||
4590 | decl = make_node (NAMELIST_DECL); | |
4591 | TREE_TYPE (decl) = void_type_node; | |
4592 | NAMELIST_DECL_ASSOCIATED_DECL (decl) = build_constructor (NULL_TREE, nml_decls); | |
4593 | DECL_NAME (decl) = get_identifier (sym->name); | |
4594 | return decl; | |
4595 | } | |
4596 | ||
4597 | ||
4ee9c684 | 4598 | /* Output an initialized decl for a module variable. */ |
4599 | ||
4600 | static void | |
4601 | gfc_create_module_variable (gfc_symbol * sym) | |
4602 | { | |
4603 | tree decl; | |
4ee9c684 | 4604 | |
d77f260f | 4605 | /* Module functions with alternate entries are dealt with later and |
4606 | would get caught by the next condition. */ | |
4607 | if (sym->attr.entry) | |
4608 | return; | |
4609 | ||
c5d33754 | 4610 | /* Make sure we convert the types of the derived types from iso_c_binding |
4611 | into (void *). */ | |
4612 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
4613 | && sym->ts.type == BT_DERIVED) | |
4614 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4615 | ||
d7cd448a | 4616 | if (gfc_fl_struct (sym->attr.flavor) |
df4d540f | 4617 | && sym->backend_decl |
4618 | && TREE_CODE (sym->backend_decl) == RECORD_TYPE) | |
4619 | { | |
4620 | decl = sym->backend_decl; | |
4621 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
9f1470cb | 4622 | |
fe9d2f5a | 4623 | if (!sym->attr.use_assoc && !sym->attr.used_in_submodule) |
9f1470cb | 4624 | { |
4625 | gcc_assert (TYPE_CONTEXT (decl) == NULL_TREE | |
4626 | || TYPE_CONTEXT (decl) == sym->ns->proc_name->backend_decl); | |
4627 | gcc_assert (DECL_CONTEXT (TYPE_STUB_DECL (decl)) == NULL_TREE | |
4628 | || DECL_CONTEXT (TYPE_STUB_DECL (decl)) | |
4629 | == sym->ns->proc_name->backend_decl); | |
4630 | } | |
df4d540f | 4631 | TYPE_CONTEXT (decl) = sym->ns->proc_name->backend_decl; |
4632 | DECL_CONTEXT (TYPE_STUB_DECL (decl)) = sym->ns->proc_name->backend_decl; | |
4633 | gfc_module_add_decl (cur_module, TYPE_STUB_DECL (decl)); | |
4634 | } | |
4635 | ||
cf269acc | 4636 | /* Only output variables, procedure pointers and array valued, |
4637 | or derived type, parameters. */ | |
4ee9c684 | 4638 | if (sym->attr.flavor != FL_VARIABLE |
be0f1581 | 4639 | && !(sym->attr.flavor == FL_PARAMETER |
cf269acc | 4640 | && (sym->attr.dimension || sym->ts.type == BT_DERIVED)) |
4641 | && !(sym->attr.flavor == FL_PROCEDURE && sym->attr.proc_pointer)) | |
4ee9c684 | 4642 | return; |
4643 | ||
df4d540f | 4644 | if ((sym->attr.in_common || sym->attr.in_equivalence) && sym->backend_decl) |
4645 | { | |
4646 | decl = sym->backend_decl; | |
16a40513 | 4647 | gcc_assert (DECL_FILE_SCOPE_P (decl)); |
df4d540f | 4648 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4649 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4650 | gfc_module_add_decl (cur_module, decl); | |
4651 | } | |
4652 | ||
d43a7f7f | 4653 | /* Don't generate variables from other modules. Variables from |
cd958916 | 4654 | COMMONs and Cray pointees will already have been generated. */ |
fe9d2f5a | 4655 | if (sym->attr.use_assoc || sym->attr.used_in_submodule |
4656 | || sym->attr.in_common || sym->attr.cray_pointee) | |
4ee9c684 | 4657 | return; |
4658 | ||
2b685f8e | 4659 | /* Equivalenced variables arrive here after creation. */ |
976d903a | 4660 | if (sym->backend_decl |
df4d540f | 4661 | && (sym->equiv_built || sym->attr.in_equivalence)) |
4662 | return; | |
2b685f8e | 4663 | |
23d075f4 | 4664 | if (sym->backend_decl && !sym->attr.vtab && !sym->attr.target) |
382ad5c3 | 4665 | gfc_internal_error ("backend decl for module variable %qs already exists", |
4666 | sym->name); | |
4ee9c684 | 4667 | |
92983bfd | 4668 | if (sym->module && !sym->attr.result && !sym->attr.dummy |
4669 | && (sym->attr.access == ACCESS_UNKNOWN | |
4670 | && (sym->ns->default_access == ACCESS_PRIVATE | |
4671 | || (sym->ns->default_access == ACCESS_UNKNOWN | |
829d7a08 | 4672 | && flag_module_private)))) |
92983bfd | 4673 | sym->attr.access = ACCESS_PRIVATE; |
4674 | ||
4675 | if (warn_unused_variable && !sym->attr.referenced | |
4676 | && sym->attr.access == ACCESS_PRIVATE) | |
4166acc7 | 4677 | gfc_warning (OPT_Wunused_value, |
4678 | "Unused PRIVATE module variable %qs declared at %L", | |
92983bfd | 4679 | sym->name, &sym->declared_at); |
4680 | ||
4ee9c684 | 4681 | /* We always want module variables to be created. */ |
4682 | sym->attr.referenced = 1; | |
4683 | /* Create the decl. */ | |
4684 | decl = gfc_get_symbol_decl (sym); | |
4685 | ||
4ee9c684 | 4686 | /* Create the variable. */ |
4687 | pushdecl (decl); | |
df4d540f | 4688 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); |
4689 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
b2c4af5e | 4690 | rest_of_decl_compilation (decl, 1, 0); |
df4d540f | 4691 | gfc_module_add_decl (cur_module, decl); |
4ee9c684 | 4692 | |
4693 | /* Also add length of strings. */ | |
4694 | if (sym->ts.type == BT_CHARACTER) | |
4695 | { | |
4696 | tree length; | |
4697 | ||
eeebe20b | 4698 | length = sym->ts.u.cl->backend_decl; |
cf4b41d8 | 4699 | gcc_assert (length || sym->attr.proc_pointer); |
4700 | if (length && !INTEGER_CST_P (length)) | |
4ee9c684 | 4701 | { |
4702 | pushdecl (length); | |
b2c4af5e | 4703 | rest_of_decl_compilation (length, 1, 0); |
4ee9c684 | 4704 | } |
4705 | } | |
a961ca30 | 4706 | |
4707 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable | |
4708 | && sym->attr.referenced && !sym->attr.use_assoc) | |
4709 | has_coarray_vars = true; | |
4ee9c684 | 4710 | } |
4711 | ||
51d9479b | 4712 | /* Emit debug information for USE statements. */ |
df4d540f | 4713 | |
4714 | static void | |
4715 | gfc_trans_use_stmts (gfc_namespace * ns) | |
4716 | { | |
4717 | gfc_use_list *use_stmt; | |
4718 | for (use_stmt = ns->use_stmts; use_stmt; use_stmt = use_stmt->next) | |
4719 | { | |
4720 | struct module_htab_entry *entry | |
4721 | = gfc_find_module (use_stmt->module_name); | |
4722 | gfc_use_rename *rent; | |
4723 | ||
4724 | if (entry->namespace_decl == NULL) | |
4725 | { | |
4726 | entry->namespace_decl | |
e60a6f7b | 4727 | = build_decl (input_location, |
4728 | NAMESPACE_DECL, | |
df4d540f | 4729 | get_identifier (use_stmt->module_name), |
4730 | void_type_node); | |
4731 | DECL_EXTERNAL (entry->namespace_decl) = 1; | |
4732 | } | |
51d9479b | 4733 | gfc_set_backend_locus (&use_stmt->where); |
df4d540f | 4734 | if (!use_stmt->only_flag) |
4735 | (*debug_hooks->imported_module_or_decl) (entry->namespace_decl, | |
4736 | NULL_TREE, | |
4737 | ns->proc_name->backend_decl, | |
4738 | false); | |
4739 | for (rent = use_stmt->rename; rent; rent = rent->next) | |
4740 | { | |
4741 | tree decl, local_name; | |
df4d540f | 4742 | |
4743 | if (rent->op != INTRINSIC_NONE) | |
4744 | continue; | |
4745 | ||
2ef51f0e | 4746 | hashval_t hash = htab_hash_string (rent->use_name); |
4747 | tree *slot = entry->decls->find_slot_with_hash (rent->use_name, hash, | |
4748 | INSERT); | |
df4d540f | 4749 | if (*slot == NULL) |
4750 | { | |
4751 | gfc_symtree *st; | |
4752 | ||
4753 | st = gfc_find_symtree (ns->sym_root, | |
4754 | rent->local_name[0] | |
4755 | ? rent->local_name : rent->use_name); | |
c2958b6b | 4756 | |
4757 | /* The following can happen if a derived type is renamed. */ | |
4758 | if (!st) | |
4759 | { | |
4760 | char *name; | |
4761 | name = xstrdup (rent->local_name[0] | |
4762 | ? rent->local_name : rent->use_name); | |
4763 | name[0] = (char) TOUPPER ((unsigned char) name[0]); | |
4764 | st = gfc_find_symtree (ns->sym_root, name); | |
4765 | free (name); | |
4766 | gcc_assert (st); | |
4767 | } | |
857c96ba | 4768 | |
4769 | /* Sometimes, generic interfaces wind up being over-ruled by a | |
4770 | local symbol (see PR41062). */ | |
4771 | if (!st->n.sym->attr.use_assoc) | |
4772 | continue; | |
4773 | ||
51d9479b | 4774 | if (st->n.sym->backend_decl |
4775 | && DECL_P (st->n.sym->backend_decl) | |
4776 | && st->n.sym->module | |
4777 | && strcmp (st->n.sym->module, use_stmt->module_name) == 0) | |
df4d540f | 4778 | { |
51d9479b | 4779 | gcc_assert (DECL_EXTERNAL (entry->namespace_decl) |
4780 | || (TREE_CODE (st->n.sym->backend_decl) | |
4781 | != VAR_DECL)); | |
df4d540f | 4782 | decl = copy_node (st->n.sym->backend_decl); |
4783 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4784 | DECL_EXTERNAL (decl) = 1; | |
4785 | DECL_IGNORED_P (decl) = 0; | |
4786 | DECL_INITIAL (decl) = NULL_TREE; | |
4787 | } | |
c40a5c1b | 4788 | else if (st->n.sym->attr.flavor == FL_NAMELIST |
4789 | && st->n.sym->attr.use_only | |
4790 | && st->n.sym->module | |
4791 | && strcmp (st->n.sym->module, use_stmt->module_name) | |
4792 | == 0) | |
4793 | { | |
4794 | decl = generate_namelist_decl (st->n.sym); | |
4795 | DECL_CONTEXT (decl) = entry->namespace_decl; | |
4796 | DECL_EXTERNAL (decl) = 1; | |
4797 | DECL_IGNORED_P (decl) = 0; | |
4798 | DECL_INITIAL (decl) = NULL_TREE; | |
4799 | } | |
df4d540f | 4800 | else |
4801 | { | |
4802 | *slot = error_mark_node; | |
2ef51f0e | 4803 | entry->decls->clear_slot (slot); |
df4d540f | 4804 | continue; |
4805 | } | |
4806 | *slot = decl; | |
4807 | } | |
4808 | decl = (tree) *slot; | |
4809 | if (rent->local_name[0]) | |
4810 | local_name = get_identifier (rent->local_name); | |
4811 | else | |
4812 | local_name = NULL_TREE; | |
51d9479b | 4813 | gfc_set_backend_locus (&rent->where); |
df4d540f | 4814 | (*debug_hooks->imported_module_or_decl) (decl, local_name, |
4815 | ns->proc_name->backend_decl, | |
4816 | !use_stmt->only_flag); | |
4817 | } | |
4818 | } | |
4ee9c684 | 4819 | } |
4820 | ||
51d9479b | 4821 | |
2eb674c9 | 4822 | /* Return true if expr is a constant initializer that gfc_conv_initializer |
4823 | will handle. */ | |
4824 | ||
4825 | static bool | |
4826 | check_constant_initializer (gfc_expr *expr, gfc_typespec *ts, bool array, | |
4827 | bool pointer) | |
4828 | { | |
4829 | gfc_constructor *c; | |
4830 | gfc_component *cm; | |
4831 | ||
4832 | if (pointer) | |
4833 | return true; | |
4834 | else if (array) | |
4835 | { | |
4836 | if (expr->expr_type == EXPR_CONSTANT || expr->expr_type == EXPR_NULL) | |
4837 | return true; | |
4838 | else if (expr->expr_type == EXPR_STRUCTURE) | |
4839 | return check_constant_initializer (expr, ts, false, false); | |
4840 | else if (expr->expr_type != EXPR_ARRAY) | |
4841 | return false; | |
126387b5 | 4842 | for (c = gfc_constructor_first (expr->value.constructor); |
4843 | c; c = gfc_constructor_next (c)) | |
2eb674c9 | 4844 | { |
4845 | if (c->iterator) | |
4846 | return false; | |
4847 | if (c->expr->expr_type == EXPR_STRUCTURE) | |
4848 | { | |
4849 | if (!check_constant_initializer (c->expr, ts, false, false)) | |
4850 | return false; | |
4851 | } | |
4852 | else if (c->expr->expr_type != EXPR_CONSTANT) | |
4853 | return false; | |
4854 | } | |
4855 | return true; | |
4856 | } | |
4857 | else switch (ts->type) | |
4858 | { | |
d7cd448a | 4859 | case_bt_struct: |
2eb674c9 | 4860 | if (expr->expr_type != EXPR_STRUCTURE) |
4861 | return false; | |
eeebe20b | 4862 | cm = expr->ts.u.derived->components; |
126387b5 | 4863 | for (c = gfc_constructor_first (expr->value.constructor); |
4864 | c; c = gfc_constructor_next (c), cm = cm->next) | |
2eb674c9 | 4865 | { |
4866 | if (!c->expr || cm->attr.allocatable) | |
4867 | continue; | |
4868 | if (!check_constant_initializer (c->expr, &cm->ts, | |
4869 | cm->attr.dimension, | |
4870 | cm->attr.pointer)) | |
4871 | return false; | |
4872 | } | |
4873 | return true; | |
4874 | default: | |
4875 | return expr->expr_type == EXPR_CONSTANT; | |
4876 | } | |
4877 | } | |
4878 | ||
4879 | /* Emit debug info for parameters and unreferenced variables with | |
4880 | initializers. */ | |
4881 | ||
4882 | static void | |
4883 | gfc_emit_parameter_debug_info (gfc_symbol *sym) | |
4884 | { | |
4885 | tree decl; | |
4886 | ||
4887 | if (sym->attr.flavor != FL_PARAMETER | |
4888 | && (sym->attr.flavor != FL_VARIABLE || sym->attr.referenced)) | |
4889 | return; | |
4890 | ||
4891 | if (sym->backend_decl != NULL | |
4892 | || sym->value == NULL | |
4893 | || sym->attr.use_assoc | |
4894 | || sym->attr.dummy | |
4895 | || sym->attr.result | |
4896 | || sym->attr.function | |
4897 | || sym->attr.intrinsic | |
4898 | || sym->attr.pointer | |
4899 | || sym->attr.allocatable | |
4900 | || sym->attr.cray_pointee | |
4901 | || sym->attr.threadprivate | |
4902 | || sym->attr.is_bind_c | |
4903 | || sym->attr.subref_array_pointer | |
4904 | || sym->attr.assign) | |
4905 | return; | |
4906 | ||
4907 | if (sym->ts.type == BT_CHARACTER) | |
4908 | { | |
eeebe20b | 4909 | gfc_conv_const_charlen (sym->ts.u.cl); |
4910 | if (sym->ts.u.cl->backend_decl == NULL | |
4911 | || TREE_CODE (sym->ts.u.cl->backend_decl) != INTEGER_CST) | |
2eb674c9 | 4912 | return; |
4913 | } | |
eeebe20b | 4914 | else if (sym->ts.type == BT_DERIVED && sym->ts.u.derived->attr.alloc_comp) |
2eb674c9 | 4915 | return; |
4916 | ||
4917 | if (sym->as) | |
4918 | { | |
4919 | int n; | |
4920 | ||
4921 | if (sym->as->type != AS_EXPLICIT) | |
4922 | return; | |
4923 | for (n = 0; n < sym->as->rank; n++) | |
4924 | if (sym->as->lower[n]->expr_type != EXPR_CONSTANT | |
4925 | || sym->as->upper[n] == NULL | |
4926 | || sym->as->upper[n]->expr_type != EXPR_CONSTANT) | |
4927 | return; | |
4928 | } | |
4929 | ||
4930 | if (!check_constant_initializer (sym->value, &sym->ts, | |
4931 | sym->attr.dimension, false)) | |
4932 | return; | |
4933 | ||
4fe73152 | 4934 | if (flag_coarray == GFC_FCOARRAY_LIB && sym->attr.codimension) |
a961ca30 | 4935 | return; |
4936 | ||
2eb674c9 | 4937 | /* Create the decl for the variable or constant. */ |
e60a6f7b | 4938 | decl = build_decl (input_location, |
4939 | sym->attr.flavor == FL_PARAMETER ? CONST_DECL : VAR_DECL, | |
2eb674c9 | 4940 | gfc_sym_identifier (sym), gfc_sym_type (sym)); |
4941 | if (sym->attr.flavor == FL_PARAMETER) | |
4942 | TREE_READONLY (decl) = 1; | |
4943 | gfc_set_decl_location (decl, &sym->declared_at); | |
4944 | if (sym->attr.dimension) | |
4945 | GFC_DECL_PACKED_ARRAY (decl) = 1; | |
4946 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
4947 | TREE_STATIC (decl) = 1; | |
4948 | TREE_USED (decl) = 1; | |
4949 | if (DECL_CONTEXT (decl) && TREE_CODE (DECL_CONTEXT (decl)) == NAMESPACE_DECL) | |
4950 | TREE_PUBLIC (decl) = 1; | |
802532b9 | 4951 | DECL_INITIAL (decl) = gfc_conv_initializer (sym->value, &sym->ts, |
4952 | TREE_TYPE (decl), | |
4953 | sym->attr.dimension, | |
4954 | false, false); | |
3a1c9df2 | 4955 | debug_hooks->early_global_decl (decl); |
2eb674c9 | 4956 | } |
4957 | ||
a961ca30 | 4958 | |
4959 | static void | |
4960 | generate_coarray_sym_init (gfc_symbol *sym) | |
4961 | { | |
4962 | tree tmp, size, decl, token; | |
bd47f0bc | 4963 | bool is_lock_type, is_event_type; |
498b946e | 4964 | int reg_type; |
a961ca30 | 4965 | |
4966 | if (sym->attr.dummy || sym->attr.allocatable || !sym->attr.codimension | |
102abea2 | 4967 | || sym->attr.use_assoc || !sym->attr.referenced |
4968 | || sym->attr.select_type_temporary) | |
a961ca30 | 4969 | return; |
4970 | ||
4971 | decl = sym->backend_decl; | |
4972 | TREE_USED(decl) = 1; | |
4973 | gcc_assert (GFC_ARRAY_TYPE_P (TREE_TYPE (decl))); | |
4974 | ||
498b946e | 4975 | is_lock_type = sym->ts.type == BT_DERIVED |
4976 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
4977 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_LOCK_TYPE; | |
4978 | ||
bd47f0bc | 4979 | is_event_type = sym->ts.type == BT_DERIVED |
4980 | && sym->ts.u.derived->from_intmod == INTMOD_ISO_FORTRAN_ENV | |
4981 | && sym->ts.u.derived->intmod_sym_id == ISOFORTRAN_EVENT_TYPE; | |
4982 | ||
a961ca30 | 4983 | /* FIXME: Workaround for PR middle-end/49106, cf. also PR middle-end/49108 |
4984 | to make sure the variable is not optimized away. */ | |
4985 | DECL_PRESERVE_P (DECL_CONTEXT (decl)) = 1; | |
4986 | ||
498b946e | 4987 | /* For lock types, we pass the array size as only the library knows the |
4988 | size of the variable. */ | |
bd47f0bc | 4989 | if (is_lock_type || is_event_type) |
498b946e | 4990 | size = gfc_index_one_node; |
4991 | else | |
4992 | size = TYPE_SIZE_UNIT (gfc_get_element_type (TREE_TYPE (decl))); | |
a961ca30 | 4993 | |
a90fe829 | 4994 | /* Ensure that we do not have size=0 for zero-sized arrays. */ |
ee4e7a5e | 4995 | size = fold_build2_loc (input_location, MAX_EXPR, size_type_node, |
4996 | fold_convert (size_type_node, size), | |
4997 | build_int_cst (size_type_node, 1)); | |
4998 | ||
a961ca30 | 4999 | if (GFC_TYPE_ARRAY_RANK (TREE_TYPE (decl))) |
5000 | { | |
5001 | tmp = GFC_TYPE_ARRAY_SIZE (TREE_TYPE (decl)); | |
5002 | size = fold_build2_loc (input_location, MULT_EXPR, size_type_node, | |
ee4e7a5e | 5003 | fold_convert (size_type_node, tmp), size); |
a961ca30 | 5004 | } |
5005 | ||
5006 | gcc_assert (GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE (decl)) != NULL_TREE); | |
5007 | token = gfc_build_addr_expr (ppvoid_type_node, | |
5008 | GFC_TYPE_ARRAY_CAF_TOKEN (TREE_TYPE(decl))); | |
498b946e | 5009 | if (is_lock_type) |
5010 | reg_type = sym->attr.artificial ? GFC_CAF_CRITICAL : GFC_CAF_LOCK_STATIC; | |
bd47f0bc | 5011 | else if (is_event_type) |
5012 | reg_type = GFC_CAF_EVENT_STATIC; | |
498b946e | 5013 | else |
5014 | reg_type = GFC_CAF_COARRAY_STATIC; | |
a961ca30 | 5015 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_register, 6, size, |
498b946e | 5016 | build_int_cst (integer_type_node, reg_type), |
a961ca30 | 5017 | token, null_pointer_node, /* token, stat. */ |
5018 | null_pointer_node, /* errgmsg, errmsg_len. */ | |
5019 | build_int_cst (integer_type_node, 0)); | |
a961ca30 | 5020 | gfc_add_modify (&caf_init_block, decl, fold_convert (TREE_TYPE (decl), tmp)); |
5021 | ||
a961ca30 | 5022 | /* Handle "static" initializer. */ |
5023 | if (sym->value) | |
5024 | { | |
5025 | sym->attr.pointer = 1; | |
5026 | tmp = gfc_trans_assignment (gfc_lval_expr_from_sym (sym), sym->value, | |
5027 | true, false); | |
5028 | sym->attr.pointer = 0; | |
5029 | gfc_add_expr_to_block (&caf_init_block, tmp); | |
5030 | } | |
5031 | } | |
5032 | ||
5033 | ||
5034 | /* Generate constructor function to initialize static, nonallocatable | |
5035 | coarrays. */ | |
5036 | ||
5037 | static void | |
5038 | generate_coarray_init (gfc_namespace * ns __attribute((unused))) | |
5039 | { | |
5040 | tree fndecl, tmp, decl, save_fn_decl; | |
5041 | ||
5042 | save_fn_decl = current_function_decl; | |
5043 | push_function_context (); | |
5044 | ||
5045 | tmp = build_function_type_list (void_type_node, NULL_TREE); | |
5046 | fndecl = build_decl (input_location, FUNCTION_DECL, | |
5047 | create_tmp_var_name ("_caf_init"), tmp); | |
5048 | ||
5049 | DECL_STATIC_CONSTRUCTOR (fndecl) = 1; | |
5050 | SET_DECL_INIT_PRIORITY (fndecl, DEFAULT_INIT_PRIORITY); | |
5051 | ||
5052 | decl = build_decl (input_location, RESULT_DECL, NULL_TREE, void_type_node); | |
5053 | DECL_ARTIFICIAL (decl) = 1; | |
5054 | DECL_IGNORED_P (decl) = 1; | |
5055 | DECL_CONTEXT (decl) = fndecl; | |
5056 | DECL_RESULT (fndecl) = decl; | |
5057 | ||
5058 | pushdecl (fndecl); | |
5059 | current_function_decl = fndecl; | |
5060 | announce_function (fndecl); | |
5061 | ||
5062 | rest_of_decl_compilation (fndecl, 0, 0); | |
5063 | make_decl_rtl (fndecl); | |
00cf115c | 5064 | allocate_struct_function (fndecl, false); |
a961ca30 | 5065 | |
cde2be84 | 5066 | pushlevel (); |
a961ca30 | 5067 | gfc_init_block (&caf_init_block); |
5068 | ||
5069 | gfc_traverse_ns (ns, generate_coarray_sym_init); | |
5070 | ||
5071 | DECL_SAVED_TREE (fndecl) = gfc_finish_block (&caf_init_block); | |
5072 | decl = getdecls (); | |
5073 | ||
cde2be84 | 5074 | poplevel (1, 1); |
a961ca30 | 5075 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
5076 | ||
5077 | DECL_SAVED_TREE (fndecl) | |
5078 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
5079 | DECL_INITIAL (fndecl)); | |
5080 | dump_function (TDI_original, fndecl); | |
5081 | ||
5082 | cfun->function_end_locus = input_location; | |
5083 | set_cfun (NULL); | |
5084 | ||
5085 | if (decl_function_context (fndecl)) | |
415d1b9a | 5086 | (void) cgraph_node::create (fndecl); |
a961ca30 | 5087 | else |
35ee1c66 | 5088 | cgraph_node::finalize_function (fndecl, true); |
a961ca30 | 5089 | |
5090 | pop_function_context (); | |
5091 | current_function_decl = save_fn_decl; | |
5092 | } | |
5093 | ||
5094 | ||
c40a5c1b | 5095 | static void |
5096 | create_module_nml_decl (gfc_symbol *sym) | |
5097 | { | |
5098 | if (sym->attr.flavor == FL_NAMELIST) | |
5099 | { | |
5100 | tree decl = generate_namelist_decl (sym); | |
5101 | pushdecl (decl); | |
5102 | gcc_assert (sym->ns->proc_name->attr.flavor == FL_MODULE); | |
5103 | DECL_CONTEXT (decl) = sym->ns->proc_name->backend_decl; | |
5104 | rest_of_decl_compilation (decl, 1, 0); | |
5105 | gfc_module_add_decl (cur_module, decl); | |
5106 | } | |
5107 | } | |
5108 | ||
5109 | ||
51d9479b | 5110 | /* Generate all the required code for module variables. */ |
5111 | ||
5112 | void | |
5113 | gfc_generate_module_vars (gfc_namespace * ns) | |
5114 | { | |
5115 | module_namespace = ns; | |
5116 | cur_module = gfc_find_module (ns->proc_name->name); | |
5117 | ||
5118 | /* Check if the frontend left the namespace in a reasonable state. */ | |
5119 | gcc_assert (ns->proc_name && !ns->proc_name->tlink); | |
5120 | ||
5121 | /* Generate COMMON blocks. */ | |
5122 | gfc_trans_common (ns); | |
5123 | ||
a961ca30 | 5124 | has_coarray_vars = false; |
5125 | ||
51d9479b | 5126 | /* Create decls for all the module variables. */ |
5127 | gfc_traverse_ns (ns, gfc_create_module_variable); | |
c40a5c1b | 5128 | gfc_traverse_ns (ns, create_module_nml_decl); |
51d9479b | 5129 | |
4fe73152 | 5130 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 5131 | generate_coarray_init (ns); |
5132 | ||
51d9479b | 5133 | cur_module = NULL; |
5134 | ||
5135 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 5136 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
51d9479b | 5137 | } |
5138 | ||
5139 | ||
4ee9c684 | 5140 | static void |
5141 | gfc_generate_contained_functions (gfc_namespace * parent) | |
5142 | { | |
5143 | gfc_namespace *ns; | |
5144 | ||
5145 | /* We create all the prototypes before generating any code. */ | |
5146 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5147 | { | |
5148 | /* Skip namespaces from used modules. */ | |
5149 | if (ns->parent != parent) | |
5150 | continue; | |
5151 | ||
d896f9b3 | 5152 | gfc_create_function_decl (ns, false); |
4ee9c684 | 5153 | } |
5154 | ||
5155 | for (ns = parent->contained; ns; ns = ns->sibling) | |
5156 | { | |
5157 | /* Skip namespaces from used modules. */ | |
5158 | if (ns->parent != parent) | |
5159 | continue; | |
5160 | ||
5161 | gfc_generate_function_code (ns); | |
5162 | } | |
5163 | } | |
5164 | ||
5165 | ||
d95efb59 | 5166 | /* Drill down through expressions for the array specification bounds and |
5167 | character length calling generate_local_decl for all those variables | |
5168 | that have not already been declared. */ | |
5169 | ||
5170 | static void | |
5171 | generate_local_decl (gfc_symbol *); | |
5172 | ||
1acb400a | 5173 | /* Traverse expr, marking all EXPR_VARIABLE symbols referenced. */ |
d95efb59 | 5174 | |
1acb400a | 5175 | static bool |
5176 | expr_decls (gfc_expr *e, gfc_symbol *sym, | |
5177 | int *f ATTRIBUTE_UNUSED) | |
5178 | { | |
5179 | if (e->expr_type != EXPR_VARIABLE | |
5180 | || sym == e->symtree->n.sym | |
d95efb59 | 5181 | || e->symtree->n.sym->mark |
5182 | || e->symtree->n.sym->ns != sym->ns) | |
1acb400a | 5183 | return false; |
d95efb59 | 5184 | |
1acb400a | 5185 | generate_local_decl (e->symtree->n.sym); |
5186 | return false; | |
5187 | } | |
d95efb59 | 5188 | |
1acb400a | 5189 | static void |
5190 | generate_expr_decls (gfc_symbol *sym, gfc_expr *e) | |
5191 | { | |
5192 | gfc_traverse_expr (e, sym, expr_decls, 0); | |
d95efb59 | 5193 | } |
5194 | ||
5195 | ||
f6d0e37a | 5196 | /* Check for dependencies in the character length and array spec. */ |
d95efb59 | 5197 | |
5198 | static void | |
5199 | generate_dependency_declarations (gfc_symbol *sym) | |
5200 | { | |
5201 | int i; | |
5202 | ||
5203 | if (sym->ts.type == BT_CHARACTER | |
eeebe20b | 5204 | && sym->ts.u.cl |
5205 | && sym->ts.u.cl->length | |
5206 | && sym->ts.u.cl->length->expr_type != EXPR_CONSTANT) | |
5207 | generate_expr_decls (sym, sym->ts.u.cl->length); | |
d95efb59 | 5208 | |
5209 | if (sym->as && sym->as->rank) | |
5210 | { | |
5211 | for (i = 0; i < sym->as->rank; i++) | |
5212 | { | |
5213 | generate_expr_decls (sym, sym->as->lower[i]); | |
5214 | generate_expr_decls (sym, sym->as->upper[i]); | |
5215 | } | |
5216 | } | |
5217 | } | |
5218 | ||
5219 | ||
4ee9c684 | 5220 | /* Generate decls for all local variables. We do this to ensure correct |
5221 | handling of expressions which only appear in the specification of | |
5222 | other functions. */ | |
5223 | ||
5224 | static void | |
5225 | generate_local_decl (gfc_symbol * sym) | |
5226 | { | |
5227 | if (sym->attr.flavor == FL_VARIABLE) | |
5228 | { | |
a961ca30 | 5229 | if (sym->attr.codimension && !sym->attr.dummy && !sym->attr.allocatable |
5230 | && sym->attr.referenced && !sym->attr.use_assoc) | |
5231 | has_coarray_vars = true; | |
5232 | ||
d95efb59 | 5233 | if (!sym->attr.dummy && !sym->ns->proc_name->attr.entry_master) |
8714fc76 | 5234 | generate_dependency_declarations (sym); |
d95efb59 | 5235 | |
4ee9c684 | 5236 | if (sym->attr.referenced) |
8714fc76 | 5237 | gfc_get_symbol_decl (sym); |
4acad347 | 5238 | |
5239 | /* Warnings for unused dummy arguments. */ | |
6992b8c8 | 5240 | else if (sym->attr.dummy && !sym->attr.in_namelist) |
7c0ca46e | 5241 | { |
4acad347 | 5242 | /* INTENT(out) dummy arguments are likely meant to be set. */ |
8290d53f | 5243 | if (warn_unused_dummy_argument && sym->attr.intent == INTENT_OUT) |
4acad347 | 5244 | { |
5245 | if (sym->ts.type != BT_DERIVED) | |
4166acc7 | 5246 | gfc_warning (OPT_Wunused_dummy_argument, |
5247 | "Dummy argument %qs at %L was declared " | |
4acad347 | 5248 | "INTENT(OUT) but was not set", sym->name, |
5249 | &sym->declared_at); | |
48cb4748 | 5250 | else if (!gfc_has_default_initializer (sym->ts.u.derived) |
5251 | && !sym->ts.u.derived->attr.zero_comp) | |
4166acc7 | 5252 | gfc_warning (OPT_Wunused_dummy_argument, |
5253 | "Derived-type dummy argument %qs at %L was " | |
4acad347 | 5254 | "declared INTENT(OUT) but was not set and " |
5255 | "does not have a default initializer", | |
5256 | sym->name, &sym->declared_at); | |
90a4a5a6 | 5257 | if (sym->backend_decl != NULL_TREE) |
5258 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
4acad347 | 5259 | } |
8290d53f | 5260 | else if (warn_unused_dummy_argument) |
90a4a5a6 | 5261 | { |
4166acc7 | 5262 | gfc_warning (OPT_Wunused_dummy_argument, |
5263 | "Unused dummy argument %qs at %L", sym->name, | |
5264 | &sym->declared_at); | |
90a4a5a6 | 5265 | if (sym->backend_decl != NULL_TREE) |
5266 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5267 | } | |
7c0ca46e | 5268 | } |
4acad347 | 5269 | |
f888a3fb | 5270 | /* Warn for unused variables, but not if they're inside a common |
1dbfac29 | 5271 | block or a namelist. */ |
36609028 | 5272 | else if (warn_unused_variable |
1dbfac29 | 5273 | && !(sym->attr.in_common || sym->mark || sym->attr.in_namelist)) |
90a4a5a6 | 5274 | { |
1dbfac29 | 5275 | if (sym->attr.use_only) |
5276 | { | |
4166acc7 | 5277 | gfc_warning (OPT_Wunused_variable, |
5278 | "Unused module variable %qs which has been " | |
1dbfac29 | 5279 | "explicitly imported at %L", sym->name, |
5280 | &sym->declared_at); | |
5281 | if (sym->backend_decl != NULL_TREE) | |
5282 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5283 | } | |
5284 | else if (!sym->attr.use_assoc) | |
5285 | { | |
4166acc7 | 5286 | gfc_warning (OPT_Wunused_variable, |
5287 | "Unused variable %qs declared at %L", | |
1dbfac29 | 5288 | sym->name, &sym->declared_at); |
5289 | if (sym->backend_decl != NULL_TREE) | |
5290 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
5291 | } | |
90a4a5a6 | 5292 | } |
8714fc76 | 5293 | |
d4163395 | 5294 | /* For variable length CHARACTER parameters, the PARM_DECL already |
5295 | references the length variable, so force gfc_get_symbol_decl | |
5296 | even when not referenced. If optimize > 0, it will be optimized | |
5297 | away anyway. But do this only after emitting -Wunused-parameter | |
5298 | warning if requested. */ | |
8714fc76 | 5299 | if (sym->attr.dummy && !sym->attr.referenced |
5300 | && sym->ts.type == BT_CHARACTER | |
eeebe20b | 5301 | && sym->ts.u.cl->backend_decl != NULL |
5302 | && TREE_CODE (sym->ts.u.cl->backend_decl) == VAR_DECL) | |
d4163395 | 5303 | { |
5304 | sym->attr.referenced = 1; | |
5305 | gfc_get_symbol_decl (sym); | |
5306 | } | |
76776e6d | 5307 | |
d0163401 | 5308 | /* INTENT(out) dummy arguments and result variables with allocatable |
5309 | components are reset by default and need to be set referenced to | |
5310 | generate the code for nullification and automatic lengths. */ | |
5311 | if (!sym->attr.referenced | |
8714fc76 | 5312 | && sym->ts.type == BT_DERIVED |
eeebe20b | 5313 | && sym->ts.u.derived->attr.alloc_comp |
c49db15e | 5314 | && !sym->attr.pointer |
d0163401 | 5315 | && ((sym->attr.dummy && sym->attr.intent == INTENT_OUT) |
5316 | || | |
5317 | (sym->attr.result && sym != sym->result))) | |
8714fc76 | 5318 | { |
5319 | sym->attr.referenced = 1; | |
5320 | gfc_get_symbol_decl (sym); | |
5321 | } | |
5322 | ||
e72f979a | 5323 | /* Check for dependencies in the array specification and string |
5324 | length, adding the necessary declarations to the function. We | |
5325 | mark the symbol now, as well as in traverse_ns, to prevent | |
5326 | getting stuck in a circular dependency. */ | |
5327 | sym->mark = 1; | |
4ee9c684 | 5328 | } |
5dd246c1 | 5329 | else if (sym->attr.flavor == FL_PARAMETER) |
5330 | { | |
6ecfe89d | 5331 | if (warn_unused_parameter |
f326eb81 | 5332 | && !sym->attr.referenced) |
5333 | { | |
5334 | if (!sym->attr.use_assoc) | |
4166acc7 | 5335 | gfc_warning (OPT_Wunused_parameter, |
5336 | "Unused parameter %qs declared at %L", sym->name, | |
f326eb81 | 5337 | &sym->declared_at); |
5338 | else if (sym->attr.use_only) | |
4166acc7 | 5339 | gfc_warning (OPT_Wunused_parameter, |
5340 | "Unused parameter %qs which has been explicitly " | |
f326eb81 | 5341 | "imported at %L", sym->name, &sym->declared_at); |
5342 | } | |
758c9897 | 5343 | |
5344 | if (sym->ns | |
5345 | && sym->ns->parent | |
5346 | && sym->ns->parent->code | |
5347 | && sym->ns->parent->code->op == EXEC_BLOCK) | |
5348 | { | |
5349 | if (sym->attr.referenced) | |
5350 | gfc_get_symbol_decl (sym); | |
5351 | sym->mark = 1; | |
5352 | } | |
5dd246c1 | 5353 | } |
fa7b6574 | 5354 | else if (sym->attr.flavor == FL_PROCEDURE) |
5355 | { | |
5356 | /* TODO: move to the appropriate place in resolve.c. */ | |
5357 | if (warn_return_type | |
5358 | && sym->attr.function | |
5359 | && sym->result | |
5360 | && sym != sym->result | |
5361 | && !sym->result->attr.referenced | |
5362 | && !sym->attr.use_assoc | |
5363 | && sym->attr.if_source != IFSRC_IFBODY) | |
5364 | { | |
4166acc7 | 5365 | gfc_warning (OPT_Wreturn_type, |
5366 | "Return value %qs of function %qs declared at " | |
fa7b6574 | 5367 | "%L not set", sym->result->name, sym->name, |
5368 | &sym->result->declared_at); | |
5369 | ||
5370 | /* Prevents "Unused variable" warning for RESULT variables. */ | |
e72f979a | 5371 | sym->result->mark = 1; |
fa7b6574 | 5372 | } |
5373 | } | |
c5d33754 | 5374 | |
19ba2ad8 | 5375 | if (sym->attr.dummy == 1) |
5376 | { | |
5377 | /* Modify the tree type for scalar character dummy arguments of bind(c) | |
5378 | procedures if they are passed by value. The tree type for them will | |
5379 | be promoted to INTEGER_TYPE for the middle end, which appears to be | |
5380 | what C would do with characters passed by-value. The value attribute | |
5381 | implies the dummy is a scalar. */ | |
5382 | if (sym->attr.value == 1 && sym->backend_decl != NULL | |
5383 | && sym->ts.type == BT_CHARACTER && sym->ts.is_c_interop | |
5384 | && sym->ns->proc_name != NULL && sym->ns->proc_name->attr.is_bind_c) | |
4c47c8b7 | 5385 | gfc_conv_scalar_char_value (sym, NULL, NULL); |
fc6338c7 | 5386 | |
5387 | /* Unused procedure passed as dummy argument. */ | |
5388 | if (sym->attr.flavor == FL_PROCEDURE) | |
5389 | { | |
5390 | if (!sym->attr.referenced) | |
5391 | { | |
8290d53f | 5392 | if (warn_unused_dummy_argument) |
4166acc7 | 5393 | gfc_warning (OPT_Wunused_dummy_argument, |
5394 | "Unused dummy argument %qs at %L", sym->name, | |
a90fe829 | 5395 | &sym->declared_at); |
fc6338c7 | 5396 | } |
5397 | ||
5398 | /* Silence bogus "unused parameter" warnings from the | |
5399 | middle end. */ | |
5400 | if (sym->backend_decl != NULL_TREE) | |
5401 | TREE_NO_WARNING (sym->backend_decl) = 1; | |
5402 | } | |
19ba2ad8 | 5403 | } |
5404 | ||
c5d33754 | 5405 | /* Make sure we convert the types of the derived types from iso_c_binding |
5406 | into (void *). */ | |
5407 | if (sym->attr.flavor != FL_PROCEDURE && sym->attr.is_iso_c | |
5408 | && sym->ts.type == BT_DERIVED) | |
5409 | sym->backend_decl = gfc_typenode_for_spec (&(sym->ts)); | |
4ee9c684 | 5410 | } |
5411 | ||
c40a5c1b | 5412 | |
5413 | static void | |
5414 | generate_local_nml_decl (gfc_symbol * sym) | |
5415 | { | |
5416 | if (sym->attr.flavor == FL_NAMELIST && !sym->attr.use_assoc) | |
5417 | { | |
5418 | tree decl = generate_namelist_decl (sym); | |
5419 | pushdecl (decl); | |
5420 | } | |
5421 | } | |
5422 | ||
5423 | ||
4ee9c684 | 5424 | static void |
5425 | generate_local_vars (gfc_namespace * ns) | |
5426 | { | |
5427 | gfc_traverse_ns (ns, generate_local_decl); | |
c40a5c1b | 5428 | gfc_traverse_ns (ns, generate_local_nml_decl); |
4ee9c684 | 5429 | } |
5430 | ||
5431 | ||
1b716045 | 5432 | /* Generate a switch statement to jump to the correct entry point. Also |
5433 | creates the label decls for the entry points. */ | |
4ee9c684 | 5434 | |
1b716045 | 5435 | static tree |
5436 | gfc_trans_entry_master_switch (gfc_entry_list * el) | |
4ee9c684 | 5437 | { |
1b716045 | 5438 | stmtblock_t block; |
5439 | tree label; | |
5440 | tree tmp; | |
5441 | tree val; | |
4ee9c684 | 5442 | |
1b716045 | 5443 | gfc_init_block (&block); |
5444 | for (; el; el = el->next) | |
5445 | { | |
5446 | /* Add the case label. */ | |
b797d6d3 | 5447 | label = gfc_build_label_decl (NULL_TREE); |
7016c612 | 5448 | val = build_int_cst (gfc_array_index_type, el->id); |
b6e3dd65 | 5449 | tmp = build_case_label (val, NULL_TREE, label); |
1b716045 | 5450 | gfc_add_expr_to_block (&block, tmp); |
5b11d932 | 5451 | |
1b716045 | 5452 | /* And jump to the actual entry point. */ |
5453 | label = gfc_build_label_decl (NULL_TREE); | |
1b716045 | 5454 | tmp = build1_v (GOTO_EXPR, label); |
5455 | gfc_add_expr_to_block (&block, tmp); | |
5456 | ||
5457 | /* Save the label decl. */ | |
5458 | el->label = label; | |
5459 | } | |
5460 | tmp = gfc_finish_block (&block); | |
5461 | /* The first argument selects the entry point. */ | |
5462 | val = DECL_ARGUMENTS (current_function_decl); | |
bfb10994 | 5463 | tmp = fold_build3_loc (input_location, SWITCH_EXPR, NULL_TREE, |
5464 | val, tmp, NULL_TREE); | |
1b716045 | 5465 | return tmp; |
4ee9c684 | 5466 | } |
5467 | ||
6374121b | 5468 | |
a4abf8a0 | 5469 | /* Add code to string lengths of actual arguments passed to a function against |
5470 | the expected lengths of the dummy arguments. */ | |
5471 | ||
5472 | static void | |
5473 | add_argument_checking (stmtblock_t *block, gfc_symbol *sym) | |
5474 | { | |
5475 | gfc_formal_arglist *formal; | |
5476 | ||
6777213b | 5477 | for (formal = gfc_sym_get_dummy_args (sym); formal; formal = formal->next) |
517c89e5 | 5478 | if (formal->sym && formal->sym->ts.type == BT_CHARACTER |
6c3000f4 | 5479 | && !formal->sym->ts.deferred) |
a4abf8a0 | 5480 | { |
5481 | enum tree_code comparison; | |
5482 | tree cond; | |
5483 | tree argname; | |
5484 | gfc_symbol *fsym; | |
5485 | gfc_charlen *cl; | |
5486 | const char *message; | |
5487 | ||
5488 | fsym = formal->sym; | |
eeebe20b | 5489 | cl = fsym->ts.u.cl; |
a4abf8a0 | 5490 | |
5491 | gcc_assert (cl); | |
5492 | gcc_assert (cl->passed_length != NULL_TREE); | |
5493 | gcc_assert (cl->backend_decl != NULL_TREE); | |
5494 | ||
5495 | /* For POINTER, ALLOCATABLE and assumed-shape dummy arguments, the | |
5496 | string lengths must match exactly. Otherwise, it is only required | |
be4be771 | 5497 | that the actual string length is *at least* the expected one. |
5498 | Sequence association allows for a mismatch of the string length | |
5499 | if the actual argument is (part of) an array, but only if the | |
5500 | dummy argument is an array. (See "Sequence association" in | |
5501 | Section 12.4.1.4 for F95 and 12.4.1.5 for F2003.) */ | |
517c89e5 | 5502 | if (fsym->attr.pointer || fsym->attr.allocatable |
f00f6dd6 | 5503 | || (fsym->as && (fsym->as->type == AS_ASSUMED_SHAPE |
5504 | || fsym->as->type == AS_ASSUMED_RANK))) | |
a4abf8a0 | 5505 | { |
5506 | comparison = NE_EXPR; | |
5507 | message = _("Actual string length does not match the declared one" | |
5508 | " for dummy argument '%s' (%ld/%ld)"); | |
5509 | } | |
be4be771 | 5510 | else if (fsym->as && fsym->as->rank != 0) |
5511 | continue; | |
a4abf8a0 | 5512 | else |
5513 | { | |
5514 | comparison = LT_EXPR; | |
5515 | message = _("Actual string length is shorter than the declared one" | |
5516 | " for dummy argument '%s' (%ld/%ld)"); | |
5517 | } | |
5518 | ||
5519 | /* Build the condition. For optional arguments, an actual length | |
5520 | of 0 is also acceptable if the associated string is NULL, which | |
5521 | means the argument was not passed. */ | |
fd779e1d | 5522 | cond = fold_build2_loc (input_location, comparison, boolean_type_node, |
5523 | cl->passed_length, cl->backend_decl); | |
a4abf8a0 | 5524 | if (fsym->attr.optional) |
5525 | { | |
5526 | tree not_absent; | |
5527 | tree not_0length; | |
5528 | tree absent_failed; | |
5529 | ||
fd779e1d | 5530 | not_0length = fold_build2_loc (input_location, NE_EXPR, |
5531 | boolean_type_node, | |
5532 | cl->passed_length, | |
385f3f36 | 5533 | build_zero_cst (gfc_charlen_type_node)); |
5fa0fdc2 | 5534 | /* The symbol needs to be referenced for gfc_get_symbol_decl. */ |
5535 | fsym->attr.referenced = 1; | |
5536 | not_absent = gfc_conv_expr_present (fsym); | |
a4abf8a0 | 5537 | |
fd779e1d | 5538 | absent_failed = fold_build2_loc (input_location, TRUTH_OR_EXPR, |
5539 | boolean_type_node, not_0length, | |
5540 | not_absent); | |
a4abf8a0 | 5541 | |
fd779e1d | 5542 | cond = fold_build2_loc (input_location, TRUTH_AND_EXPR, |
5543 | boolean_type_node, cond, absent_failed); | |
a4abf8a0 | 5544 | } |
5545 | ||
5546 | /* Build the runtime check. */ | |
5547 | argname = gfc_build_cstring_const (fsym->name); | |
5548 | argname = gfc_build_addr_expr (pchar_type_node, argname); | |
5549 | gfc_trans_runtime_check (true, false, cond, block, &fsym->declared_at, | |
5550 | message, argname, | |
5551 | fold_convert (long_integer_type_node, | |
5552 | cl->passed_length), | |
5553 | fold_convert (long_integer_type_node, | |
5554 | cl->backend_decl)); | |
5555 | } | |
5556 | } | |
5557 | ||
5558 | ||
7257a5d2 | 5559 | static void |
5560 | create_main_function (tree fndecl) | |
5561 | { | |
43702da6 | 5562 | tree old_context; |
7257a5d2 | 5563 | tree ftn_main; |
5564 | tree tmp, decl, result_decl, argc, argv, typelist, arglist; | |
5565 | stmtblock_t body; | |
5566 | ||
43702da6 | 5567 | old_context = current_function_decl; |
5568 | ||
5569 | if (old_context) | |
5570 | { | |
5571 | push_function_context (); | |
5572 | saved_parent_function_decls = saved_function_decls; | |
5573 | saved_function_decls = NULL_TREE; | |
5574 | } | |
5575 | ||
7257a5d2 | 5576 | /* main() function must be declared with global scope. */ |
5577 | gcc_assert (current_function_decl == NULL_TREE); | |
5578 | ||
5579 | /* Declare the function. */ | |
5580 | tmp = build_function_type_list (integer_type_node, integer_type_node, | |
5581 | build_pointer_type (pchar_type_node), | |
5582 | NULL_TREE); | |
0509d0ee | 5583 | main_identifier_node = get_identifier ("main"); |
e60a6f7b | 5584 | ftn_main = build_decl (input_location, FUNCTION_DECL, |
5585 | main_identifier_node, tmp); | |
7257a5d2 | 5586 | DECL_EXTERNAL (ftn_main) = 0; |
5587 | TREE_PUBLIC (ftn_main) = 1; | |
5588 | TREE_STATIC (ftn_main) = 1; | |
5589 | DECL_ATTRIBUTES (ftn_main) | |
5590 | = tree_cons (get_identifier("externally_visible"), NULL_TREE, NULL_TREE); | |
5591 | ||
5592 | /* Setup the result declaration (for "return 0"). */ | |
e60a6f7b | 5593 | result_decl = build_decl (input_location, |
5594 | RESULT_DECL, NULL_TREE, integer_type_node); | |
7257a5d2 | 5595 | DECL_ARTIFICIAL (result_decl) = 1; |
5596 | DECL_IGNORED_P (result_decl) = 1; | |
5597 | DECL_CONTEXT (result_decl) = ftn_main; | |
5598 | DECL_RESULT (ftn_main) = result_decl; | |
5599 | ||
5600 | pushdecl (ftn_main); | |
5601 | ||
5602 | /* Get the arguments. */ | |
5603 | ||
5604 | arglist = NULL_TREE; | |
5605 | typelist = TYPE_ARG_TYPES (TREE_TYPE (ftn_main)); | |
5606 | ||
5607 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5608 | argc = build_decl (input_location, PARM_DECL, get_identifier ("argc"), tmp); |
7257a5d2 | 5609 | DECL_CONTEXT (argc) = ftn_main; |
5610 | DECL_ARG_TYPE (argc) = TREE_VALUE (typelist); | |
5611 | TREE_READONLY (argc) = 1; | |
5612 | gfc_finish_decl (argc); | |
5613 | arglist = chainon (arglist, argc); | |
5614 | ||
5615 | typelist = TREE_CHAIN (typelist); | |
5616 | tmp = TREE_VALUE (typelist); | |
e60a6f7b | 5617 | argv = build_decl (input_location, PARM_DECL, get_identifier ("argv"), tmp); |
7257a5d2 | 5618 | DECL_CONTEXT (argv) = ftn_main; |
5619 | DECL_ARG_TYPE (argv) = TREE_VALUE (typelist); | |
5620 | TREE_READONLY (argv) = 1; | |
5621 | DECL_BY_REFERENCE (argv) = 1; | |
5622 | gfc_finish_decl (argv); | |
5623 | arglist = chainon (arglist, argv); | |
5624 | ||
5625 | DECL_ARGUMENTS (ftn_main) = arglist; | |
5626 | current_function_decl = ftn_main; | |
5627 | announce_function (ftn_main); | |
5628 | ||
5629 | rest_of_decl_compilation (ftn_main, 1, 0); | |
5630 | make_decl_rtl (ftn_main); | |
00cf115c | 5631 | allocate_struct_function (ftn_main, false); |
cde2be84 | 5632 | pushlevel (); |
7257a5d2 | 5633 | |
5634 | gfc_init_block (&body); | |
5635 | ||
293d72e0 | 5636 | /* Call some libgfortran initialization routines, call then MAIN__(). */ |
7257a5d2 | 5637 | |
d44f2f7c | 5638 | /* Call _gfortran_caf_init (*argc, ***argv). */ |
4fe73152 | 5639 | if (flag_coarray == GFC_FCOARRAY_LIB) |
70b5944a | 5640 | { |
5641 | tree pint_type, pppchar_type; | |
5642 | pint_type = build_pointer_type (integer_type_node); | |
5643 | pppchar_type | |
5644 | = build_pointer_type (build_pointer_type (pchar_type_node)); | |
5645 | ||
d44f2f7c | 5646 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_init, 2, |
70b5944a | 5647 | gfc_build_addr_expr (pint_type, argc), |
d44f2f7c | 5648 | gfc_build_addr_expr (pppchar_type, argv)); |
70b5944a | 5649 | gfc_add_expr_to_block (&body, tmp); |
5650 | } | |
5651 | ||
7257a5d2 | 5652 | /* Call _gfortran_set_args (argc, argv). */ |
43702da6 | 5653 | TREE_USED (argc) = 1; |
5654 | TREE_USED (argv) = 1; | |
389dd41b | 5655 | tmp = build_call_expr_loc (input_location, |
5656 | gfor_fndecl_set_args, 2, argc, argv); | |
7257a5d2 | 5657 | gfc_add_expr_to_block (&body, tmp); |
5658 | ||
5659 | /* Add a call to set_options to set up the runtime library Fortran | |
5660 | language standard parameters. */ | |
5661 | { | |
5662 | tree array_type, array, var; | |
f1f41a6c | 5663 | vec<constructor_elt, va_gc> *v = NULL; |
7257a5d2 | 5664 | |
5665 | /* Passing a new option to the library requires four modifications: | |
5666 | + add it to the tree_cons list below | |
5667 | + change the array size in the call to build_array_type | |
5668 | + change the first argument to the library call | |
5669 | gfor_fndecl_set_options | |
5670 | + modify the library (runtime/compile_options.c)! */ | |
5671 | ||
06f13dc1 | 5672 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5673 | build_int_cst (integer_type_node, | |
5674 | gfc_option.warn_std)); | |
5675 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5676 | build_int_cst (integer_type_node, | |
5677 | gfc_option.allow_std)); | |
5678 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, | |
5679 | build_int_cst (integer_type_node, pedantic)); | |
b2130263 | 5680 | /* TODO: This is the old -fdump-core option, which is unused but |
5681 | passed due to ABI compatibility; remove when bumping the | |
5682 | library ABI. */ | |
06f13dc1 | 5683 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5684 | build_int_cst (integer_type_node, | |
b2130263 | 5685 | 0)); |
06f13dc1 | 5686 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 5687 | build_int_cst (integer_type_node, flag_backtrace)); |
06f13dc1 | 5688 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
829d7a08 | 5689 | build_int_cst (integer_type_node, flag_sign_zero)); |
06f13dc1 | 5690 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5691 | build_int_cst (integer_type_node, | |
5692 | (gfc_option.rtcheck | |
5693 | & GFC_RTCHECK_BOUNDS))); | |
7f4f15dc | 5694 | /* TODO: This is the -frange-check option, which no longer affects |
5695 | library behavior; when bumping the library ABI this slot can be | |
5696 | reused for something else. As it is the last element in the | |
293d72e0 | 5697 | array, we can instead leave it out altogether. */ |
553e7cef | 5698 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5699 | build_int_cst (integer_type_node, 0)); | |
06f13dc1 | 5700 | CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, |
5701 | build_int_cst (integer_type_node, | |
553e7cef | 5702 | gfc_option.fpe_summary)); |
7257a5d2 | 5703 | |
5704 | array_type = build_array_type (integer_type_node, | |
553e7cef | 5705 | build_index_type (size_int (8))); |
06f13dc1 | 5706 | array = build_constructor (array_type, v); |
7257a5d2 | 5707 | TREE_CONSTANT (array) = 1; |
5708 | TREE_STATIC (array) = 1; | |
5709 | ||
5710 | /* Create a static variable to hold the jump table. */ | |
bf77f8ee | 5711 | var = build_decl (input_location, VAR_DECL, |
5712 | create_tmp_var_name ("options"), | |
5713 | array_type); | |
5714 | DECL_ARTIFICIAL (var) = 1; | |
5715 | DECL_IGNORED_P (var) = 1; | |
7257a5d2 | 5716 | TREE_CONSTANT (var) = 1; |
5717 | TREE_STATIC (var) = 1; | |
5718 | TREE_READONLY (var) = 1; | |
5719 | DECL_INITIAL (var) = array; | |
bf77f8ee | 5720 | pushdecl (var); |
7257a5d2 | 5721 | var = gfc_build_addr_expr (build_pointer_type (integer_type_node), var); |
5722 | ||
389dd41b | 5723 | tmp = build_call_expr_loc (input_location, |
5724 | gfor_fndecl_set_options, 2, | |
553e7cef | 5725 | build_int_cst (integer_type_node, 9), var); |
7257a5d2 | 5726 | gfc_add_expr_to_block (&body, tmp); |
5727 | } | |
5728 | ||
5729 | /* If -ffpe-trap option was provided, add a call to set_fpe so that | |
5730 | the library will raise a FPE when needed. */ | |
5731 | if (gfc_option.fpe != 0) | |
5732 | { | |
389dd41b | 5733 | tmp = build_call_expr_loc (input_location, |
5734 | gfor_fndecl_set_fpe, 1, | |
7257a5d2 | 5735 | build_int_cst (integer_type_node, |
5736 | gfc_option.fpe)); | |
5737 | gfc_add_expr_to_block (&body, tmp); | |
5738 | } | |
5739 | ||
5740 | /* If this is the main program and an -fconvert option was provided, | |
5741 | add a call to set_convert. */ | |
5742 | ||
4fe73152 | 5743 | if (flag_convert != GFC_FLAG_CONVERT_NATIVE) |
7257a5d2 | 5744 | { |
389dd41b | 5745 | tmp = build_call_expr_loc (input_location, |
5746 | gfor_fndecl_set_convert, 1, | |
4fe73152 | 5747 | build_int_cst (integer_type_node, flag_convert)); |
7257a5d2 | 5748 | gfc_add_expr_to_block (&body, tmp); |
5749 | } | |
5750 | ||
5751 | /* If this is the main program and an -frecord-marker option was provided, | |
5752 | add a call to set_record_marker. */ | |
5753 | ||
eb106faf | 5754 | if (flag_record_marker != 0) |
7257a5d2 | 5755 | { |
389dd41b | 5756 | tmp = build_call_expr_loc (input_location, |
5757 | gfor_fndecl_set_record_marker, 1, | |
7257a5d2 | 5758 | build_int_cst (integer_type_node, |
eb106faf | 5759 | flag_record_marker)); |
7257a5d2 | 5760 | gfc_add_expr_to_block (&body, tmp); |
5761 | } | |
5762 | ||
eb106faf | 5763 | if (flag_max_subrecord_length != 0) |
7257a5d2 | 5764 | { |
389dd41b | 5765 | tmp = build_call_expr_loc (input_location, |
5766 | gfor_fndecl_set_max_subrecord_length, 1, | |
7257a5d2 | 5767 | build_int_cst (integer_type_node, |
eb106faf | 5768 | flag_max_subrecord_length)); |
7257a5d2 | 5769 | gfc_add_expr_to_block (&body, tmp); |
5770 | } | |
5771 | ||
5772 | /* Call MAIN__(). */ | |
389dd41b | 5773 | tmp = build_call_expr_loc (input_location, |
5774 | fndecl, 0); | |
7257a5d2 | 5775 | gfc_add_expr_to_block (&body, tmp); |
5776 | ||
43702da6 | 5777 | /* Mark MAIN__ as used. */ |
5778 | TREE_USED (fndecl) = 1; | |
5779 | ||
70b5944a | 5780 | /* Coarray: Call _gfortran_caf_finalize(void). */ |
4fe73152 | 5781 | if (flag_coarray == GFC_FCOARRAY_LIB) |
a90fe829 | 5782 | { |
70b5944a | 5783 | tmp = build_call_expr_loc (input_location, gfor_fndecl_caf_finalize, 0); |
5784 | gfc_add_expr_to_block (&body, tmp); | |
5785 | } | |
5786 | ||
7257a5d2 | 5787 | /* "return 0". */ |
fd779e1d | 5788 | tmp = fold_build2_loc (input_location, MODIFY_EXPR, integer_type_node, |
5789 | DECL_RESULT (ftn_main), | |
5790 | build_int_cst (integer_type_node, 0)); | |
7257a5d2 | 5791 | tmp = build1_v (RETURN_EXPR, tmp); |
5792 | gfc_add_expr_to_block (&body, tmp); | |
5793 | ||
5794 | ||
5795 | DECL_SAVED_TREE (ftn_main) = gfc_finish_block (&body); | |
5796 | decl = getdecls (); | |
5797 | ||
5798 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 5799 | poplevel (1, 1); |
7257a5d2 | 5800 | BLOCK_SUPERCONTEXT (DECL_INITIAL (ftn_main)) = ftn_main; |
5801 | ||
5802 | DECL_SAVED_TREE (ftn_main) | |
5803 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (ftn_main), | |
5804 | DECL_INITIAL (ftn_main)); | |
5805 | ||
5806 | /* Output the GENERIC tree. */ | |
5807 | dump_function (TDI_original, ftn_main); | |
5808 | ||
35ee1c66 | 5809 | cgraph_node::finalize_function (ftn_main, true); |
43702da6 | 5810 | |
5811 | if (old_context) | |
5812 | { | |
5813 | pop_function_context (); | |
5814 | saved_function_decls = saved_parent_function_decls; | |
5815 | } | |
5816 | current_function_decl = old_context; | |
7257a5d2 | 5817 | } |
5818 | ||
5819 | ||
89ac8ba1 | 5820 | /* Get the result expression for a procedure. */ |
5821 | ||
5822 | static tree | |
5823 | get_proc_result (gfc_symbol* sym) | |
5824 | { | |
5825 | if (sym->attr.subroutine || sym == sym->result) | |
5826 | { | |
5827 | if (current_fake_result_decl != NULL) | |
5828 | return TREE_VALUE (current_fake_result_decl); | |
5829 | ||
5830 | return NULL_TREE; | |
5831 | } | |
5832 | ||
5833 | return sym->result->backend_decl; | |
5834 | } | |
5835 | ||
5836 | ||
5837 | /* Generate an appropriate return-statement for a procedure. */ | |
5838 | ||
5839 | tree | |
5840 | gfc_generate_return (void) | |
5841 | { | |
5842 | gfc_symbol* sym; | |
5843 | tree result; | |
5844 | tree fndecl; | |
5845 | ||
5846 | sym = current_procedure_symbol; | |
5847 | fndecl = sym->backend_decl; | |
5848 | ||
5849 | if (TREE_TYPE (DECL_RESULT (fndecl)) == void_type_node) | |
5850 | result = NULL_TREE; | |
5851 | else | |
5852 | { | |
5853 | result = get_proc_result (sym); | |
5854 | ||
5855 | /* Set the return value to the dummy result variable. The | |
5856 | types may be different for scalar default REAL functions | |
5857 | with -ff2c, therefore we have to convert. */ | |
5858 | if (result != NULL_TREE) | |
5859 | { | |
5860 | result = convert (TREE_TYPE (DECL_RESULT (fndecl)), result); | |
fd779e1d | 5861 | result = fold_build2_loc (input_location, MODIFY_EXPR, |
5862 | TREE_TYPE (result), DECL_RESULT (fndecl), | |
5863 | result); | |
89ac8ba1 | 5864 | } |
5865 | } | |
5866 | ||
5867 | return build1_v (RETURN_EXPR, result); | |
5868 | } | |
5869 | ||
5870 | ||
d566c3e0 | 5871 | static void |
5872 | is_from_ieee_module (gfc_symbol *sym) | |
5873 | { | |
5874 | if (sym->from_intmod == INTMOD_IEEE_FEATURES | |
5875 | || sym->from_intmod == INTMOD_IEEE_EXCEPTIONS | |
5876 | || sym->from_intmod == INTMOD_IEEE_ARITHMETIC) | |
5877 | seen_ieee_symbol = 1; | |
5878 | } | |
5879 | ||
5880 | ||
5881 | static int | |
5882 | is_ieee_module_used (gfc_namespace *ns) | |
5883 | { | |
5884 | seen_ieee_symbol = 0; | |
5885 | gfc_traverse_ns (ns, is_from_ieee_module); | |
5886 | return seen_ieee_symbol; | |
5887 | } | |
5888 | ||
5889 | ||
01d728a4 | 5890 | static gfc_omp_clauses *module_oacc_clauses; |
5891 | ||
5892 | ||
5893 | static void | |
5894 | add_clause (gfc_symbol *sym, gfc_omp_map_op map_op) | |
5895 | { | |
5896 | gfc_omp_namelist *n; | |
5897 | ||
5898 | n = gfc_get_omp_namelist (); | |
5899 | n->sym = sym; | |
5900 | n->u.map_op = map_op; | |
5901 | ||
5902 | if (!module_oacc_clauses) | |
5903 | module_oacc_clauses = gfc_get_omp_clauses (); | |
5904 | ||
5905 | if (module_oacc_clauses->lists[OMP_LIST_MAP]) | |
5906 | n->next = module_oacc_clauses->lists[OMP_LIST_MAP]; | |
5907 | ||
5908 | module_oacc_clauses->lists[OMP_LIST_MAP] = n; | |
5909 | } | |
5910 | ||
5911 | ||
5912 | static void | |
5913 | find_module_oacc_declare_clauses (gfc_symbol *sym) | |
5914 | { | |
5915 | if (sym->attr.use_assoc) | |
5916 | { | |
5917 | gfc_omp_map_op map_op; | |
5918 | ||
5919 | if (sym->attr.oacc_declare_create) | |
5920 | map_op = OMP_MAP_FORCE_ALLOC; | |
5921 | ||
5922 | if (sym->attr.oacc_declare_copyin) | |
5923 | map_op = OMP_MAP_FORCE_TO; | |
5924 | ||
5925 | if (sym->attr.oacc_declare_deviceptr) | |
5926 | map_op = OMP_MAP_FORCE_DEVICEPTR; | |
5927 | ||
5928 | if (sym->attr.oacc_declare_device_resident) | |
5929 | map_op = OMP_MAP_DEVICE_RESIDENT; | |
5930 | ||
5931 | if (sym->attr.oacc_declare_create | |
5932 | || sym->attr.oacc_declare_copyin | |
5933 | || sym->attr.oacc_declare_deviceptr | |
5934 | || sym->attr.oacc_declare_device_resident) | |
5935 | { | |
5936 | sym->attr.referenced = 1; | |
5937 | add_clause (sym, map_op); | |
5938 | } | |
5939 | } | |
5940 | } | |
5941 | ||
5942 | ||
5943 | void | |
5944 | finish_oacc_declare (gfc_namespace *ns, gfc_symbol *sym, bool block) | |
5945 | { | |
5946 | gfc_code *code; | |
5947 | gfc_oacc_declare *oc; | |
5948 | locus where = gfc_current_locus; | |
5949 | gfc_omp_clauses *omp_clauses = NULL; | |
5950 | gfc_omp_namelist *n, *p; | |
5951 | ||
5952 | gfc_traverse_ns (ns, find_module_oacc_declare_clauses); | |
5953 | ||
5954 | if (module_oacc_clauses && sym->attr.flavor == FL_PROGRAM) | |
5955 | { | |
5956 | gfc_oacc_declare *new_oc; | |
5957 | ||
5958 | new_oc = gfc_get_oacc_declare (); | |
5959 | new_oc->next = ns->oacc_declare; | |
5960 | new_oc->clauses = module_oacc_clauses; | |
5961 | ||
5962 | ns->oacc_declare = new_oc; | |
5963 | module_oacc_clauses = NULL; | |
5964 | } | |
5965 | ||
5966 | if (!ns->oacc_declare) | |
5967 | return; | |
5968 | ||
5969 | for (oc = ns->oacc_declare; oc; oc = oc->next) | |
5970 | { | |
5971 | if (oc->module_var) | |
5972 | continue; | |
5973 | ||
5974 | if (block) | |
5975 | gfc_error ("Sorry, $!ACC DECLARE at %L is not allowed " | |
5976 | "in BLOCK construct", &oc->loc); | |
5977 | ||
5978 | ||
5979 | if (oc->clauses && oc->clauses->lists[OMP_LIST_MAP]) | |
5980 | { | |
5981 | if (omp_clauses == NULL) | |
5982 | { | |
5983 | omp_clauses = oc->clauses; | |
5984 | continue; | |
5985 | } | |
5986 | ||
5987 | for (n = oc->clauses->lists[OMP_LIST_MAP]; n; p = n, n = n->next) | |
5988 | ; | |
5989 | ||
5990 | gcc_assert (p->next == NULL); | |
5991 | ||
5992 | p->next = omp_clauses->lists[OMP_LIST_MAP]; | |
5993 | omp_clauses = oc->clauses; | |
5994 | } | |
5995 | } | |
5996 | ||
5997 | if (!omp_clauses) | |
5998 | return; | |
5999 | ||
6000 | for (n = omp_clauses->lists[OMP_LIST_MAP]; n; n = n->next) | |
6001 | { | |
6002 | switch (n->u.map_op) | |
6003 | { | |
6004 | case OMP_MAP_DEVICE_RESIDENT: | |
6005 | n->u.map_op = OMP_MAP_FORCE_ALLOC; | |
6006 | break; | |
6007 | ||
6008 | default: | |
6009 | break; | |
6010 | } | |
6011 | } | |
6012 | ||
6013 | code = XCNEW (gfc_code); | |
6014 | code->op = EXEC_OACC_DECLARE; | |
6015 | code->loc = where; | |
6016 | ||
6017 | code->ext.oacc_declare = gfc_get_oacc_declare (); | |
6018 | code->ext.oacc_declare->clauses = omp_clauses; | |
6019 | ||
6020 | code->block = XCNEW (gfc_code); | |
6021 | code->block->op = EXEC_OACC_DECLARE; | |
6022 | code->block->loc = where; | |
6023 | ||
6024 | if (ns->code) | |
6025 | code->block->next = ns->code; | |
6026 | ||
6027 | ns->code = code; | |
6028 | ||
6029 | return; | |
6030 | } | |
6031 | ||
6032 | ||
4ee9c684 | 6033 | /* Generate code for a function. */ |
6034 | ||
6035 | void | |
6036 | gfc_generate_function_code (gfc_namespace * ns) | |
6037 | { | |
6038 | tree fndecl; | |
6039 | tree old_context; | |
6040 | tree decl; | |
6041 | tree tmp; | |
d566c3e0 | 6042 | tree fpstate = NULL_TREE; |
89ac8ba1 | 6043 | stmtblock_t init, cleanup; |
4ee9c684 | 6044 | stmtblock_t body; |
89ac8ba1 | 6045 | gfc_wrapped_block try_block; |
5fa0fdc2 | 6046 | tree recurcheckvar = NULL_TREE; |
4ee9c684 | 6047 | gfc_symbol *sym; |
89ac8ba1 | 6048 | gfc_symbol *previous_procedure_symbol; |
d566c3e0 | 6049 | int rank, ieee; |
e50e62f5 | 6050 | bool is_recursive; |
4ee9c684 | 6051 | |
6052 | sym = ns->proc_name; | |
89ac8ba1 | 6053 | previous_procedure_symbol = current_procedure_symbol; |
6054 | current_procedure_symbol = sym; | |
1b716045 | 6055 | |
4ee9c684 | 6056 | /* Check that the frontend isn't still using this. */ |
22d678e8 | 6057 | gcc_assert (sym->tlink == NULL); |
4ee9c684 | 6058 | sym->tlink = sym; |
6059 | ||
6060 | /* Create the declaration for functions with global scope. */ | |
6061 | if (!sym->backend_decl) | |
d896f9b3 | 6062 | gfc_create_function_decl (ns, false); |
4ee9c684 | 6063 | |
6064 | fndecl = sym->backend_decl; | |
6065 | old_context = current_function_decl; | |
6066 | ||
6067 | if (old_context) | |
6068 | { | |
6069 | push_function_context (); | |
6070 | saved_parent_function_decls = saved_function_decls; | |
6071 | saved_function_decls = NULL_TREE; | |
6072 | } | |
6073 | ||
1b716045 | 6074 | trans_function_start (sym); |
4ee9c684 | 6075 | |
89ac8ba1 | 6076 | gfc_init_block (&init); |
4ee9c684 | 6077 | |
c6871095 | 6078 | if (ns->entries && ns->proc_name->ts.type == BT_CHARACTER) |
6079 | { | |
6080 | /* Copy length backend_decls to all entry point result | |
6081 | symbols. */ | |
6082 | gfc_entry_list *el; | |
6083 | tree backend_decl; | |
6084 | ||
eeebe20b | 6085 | gfc_conv_const_charlen (ns->proc_name->ts.u.cl); |
6086 | backend_decl = ns->proc_name->result->ts.u.cl->backend_decl; | |
c6871095 | 6087 | for (el = ns->entries; el; el = el->next) |
eeebe20b | 6088 | el->sym->result->ts.u.cl->backend_decl = backend_decl; |
c6871095 | 6089 | } |
6090 | ||
4ee9c684 | 6091 | /* Translate COMMON blocks. */ |
6092 | gfc_trans_common (ns); | |
6093 | ||
c750cc52 | 6094 | /* Null the parent fake result declaration if this namespace is |
6095 | a module function or an external procedures. */ | |
6096 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6097 | || ns->parent == NULL) | |
6098 | parent_fake_result_decl = NULL_TREE; | |
6099 | ||
2b685f8e | 6100 | gfc_generate_contained_functions (ns); |
6101 | ||
9579733e | 6102 | nonlocal_dummy_decls = NULL; |
6103 | nonlocal_dummy_decl_pset = NULL; | |
6104 | ||
a961ca30 | 6105 | has_coarray_vars = false; |
4ee9c684 | 6106 | generate_local_vars (ns); |
5b11d932 | 6107 | |
4fe73152 | 6108 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 6109 | generate_coarray_init (ns); |
6110 | ||
c750cc52 | 6111 | /* Keep the parent fake result declaration in module functions |
6112 | or external procedures. */ | |
6113 | if ((ns->parent && ns->parent->proc_name->attr.flavor == FL_MODULE) | |
6114 | || ns->parent == NULL) | |
6115 | current_fake_result_decl = parent_fake_result_decl; | |
6116 | else | |
6117 | current_fake_result_decl = NULL_TREE; | |
6118 | ||
89ac8ba1 | 6119 | is_recursive = sym->attr.recursive |
6120 | || (sym->attr.entry_master | |
6121 | && sym->ns->entries->sym->attr.recursive); | |
6122 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 6123 | && !is_recursive && !flag_recursive) |
89ac8ba1 | 6124 | { |
6125 | char * msg; | |
6126 | ||
87fda26c | 6127 | msg = xasprintf ("Recursive call to nonrecursive procedure '%s'", |
6128 | sym->name); | |
89ac8ba1 | 6129 | recurcheckvar = gfc_create_var (boolean_type_node, "is_recursive"); |
6130 | TREE_STATIC (recurcheckvar) = 1; | |
6131 | DECL_INITIAL (recurcheckvar) = boolean_false_node; | |
6132 | gfc_add_expr_to_block (&init, recurcheckvar); | |
6133 | gfc_trans_runtime_check (true, false, recurcheckvar, &init, | |
6134 | &sym->declared_at, msg); | |
6135 | gfc_add_modify (&init, recurcheckvar, boolean_true_node); | |
434f0922 | 6136 | free (msg); |
89ac8ba1 | 6137 | } |
4ee9c684 | 6138 | |
d566c3e0 | 6139 | /* Check if an IEEE module is used in the procedure. If so, save |
6140 | the floating point state. */ | |
6141 | ieee = is_ieee_module_used (ns); | |
6142 | if (ieee) | |
d7333535 | 6143 | fpstate = gfc_save_fp_state (&init); |
d566c3e0 | 6144 | |
4ee9c684 | 6145 | /* Now generate the code for the body of this function. */ |
6146 | gfc_init_block (&body); | |
6147 | ||
6148 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node | |
89ac8ba1 | 6149 | && sym->attr.subroutine) |
4ee9c684 | 6150 | { |
6151 | tree alternate_return; | |
c750cc52 | 6152 | alternate_return = gfc_get_fake_result_decl (sym, 0); |
75a70cf9 | 6153 | gfc_add_modify (&body, alternate_return, integer_zero_node); |
4ee9c684 | 6154 | } |
6155 | ||
1b716045 | 6156 | if (ns->entries) |
6157 | { | |
6158 | /* Jump to the correct entry point. */ | |
6159 | tmp = gfc_trans_entry_master_switch (ns->entries); | |
6160 | gfc_add_expr_to_block (&body, tmp); | |
6161 | } | |
6162 | ||
a4abf8a0 | 6163 | /* If bounds-checking is enabled, generate code to check passed in actual |
6164 | arguments against the expected dummy argument attributes (e.g. string | |
6165 | lengths). */ | |
c1630d65 | 6166 | if ((gfc_option.rtcheck & GFC_RTCHECK_BOUNDS) && !sym->attr.is_bind_c) |
a4abf8a0 | 6167 | add_argument_checking (&body, sym); |
6168 | ||
01d728a4 | 6169 | finish_oacc_declare (ns, sym, false); |
ca4c3545 | 6170 | |
4ee9c684 | 6171 | tmp = gfc_trans_code (ns->code); |
6172 | gfc_add_expr_to_block (&body, tmp); | |
6173 | ||
1caa6ab1 | 6174 | if (TREE_TYPE (DECL_RESULT (fndecl)) != void_type_node |
6175 | || (sym->result && sym->result != sym | |
6176 | && sym->result->ts.type == BT_DERIVED | |
6177 | && sym->result->ts.u.derived->attr.alloc_comp)) | |
4ee9c684 | 6178 | { |
1caa6ab1 | 6179 | bool artificial_result_decl = false; |
89ac8ba1 | 6180 | tree result = get_proc_result (sym); |
1caa6ab1 | 6181 | gfc_symbol *rsym = sym == sym->result ? sym : sym->result; |
6182 | ||
6183 | /* Make sure that a function returning an object with | |
6184 | alloc/pointer_components always has a result, where at least | |
6185 | the allocatable/pointer components are set to zero. */ | |
6186 | if (result == NULL_TREE && sym->attr.function | |
6187 | && ((sym->result->ts.type == BT_DERIVED | |
6188 | && (sym->attr.allocatable | |
6189 | || sym->attr.pointer | |
6190 | || sym->result->ts.u.derived->attr.alloc_comp | |
6191 | || sym->result->ts.u.derived->attr.pointer_comp)) | |
6192 | || (sym->result->ts.type == BT_CLASS | |
6193 | && (CLASS_DATA (sym)->attr.allocatable | |
6194 | || CLASS_DATA (sym)->attr.class_pointer | |
6195 | || CLASS_DATA (sym->result)->attr.alloc_comp | |
6196 | || CLASS_DATA (sym->result)->attr.pointer_comp)))) | |
6197 | { | |
6198 | artificial_result_decl = true; | |
6199 | result = gfc_get_fake_result_decl (sym, 0); | |
6200 | } | |
4ee9c684 | 6201 | |
42766cb3 | 6202 | if (result != NULL_TREE && sym->attr.function && !sym->attr.pointer) |
2294b616 | 6203 | { |
deb7edfc | 6204 | if (sym->attr.allocatable && sym->attr.dimension == 0 |
6205 | && sym->result == sym) | |
6206 | gfc_add_modify (&init, result, fold_convert (TREE_TYPE (result), | |
6207 | null_pointer_node)); | |
42766cb3 | 6208 | else if (sym->ts.type == BT_CLASS |
6209 | && CLASS_DATA (sym)->attr.allocatable | |
3a19c063 | 6210 | && CLASS_DATA (sym)->attr.dimension == 0 |
6211 | && sym->result == sym) | |
42766cb3 | 6212 | { |
6213 | tmp = CLASS_DATA (sym)->backend_decl; | |
6214 | tmp = fold_build3_loc (input_location, COMPONENT_REF, | |
6215 | TREE_TYPE (tmp), result, tmp, NULL_TREE); | |
6216 | gfc_add_modify (&init, tmp, fold_convert (TREE_TYPE (tmp), | |
6217 | null_pointer_node)); | |
6218 | } | |
deb7edfc | 6219 | else if (sym->ts.type == BT_DERIVED |
42766cb3 | 6220 | && !sym->attr.allocatable) |
53169279 | 6221 | { |
1caa6ab1 | 6222 | gfc_expr *init_exp; |
6223 | /* Arrays are not initialized using the default initializer of | |
6224 | their elements. Therefore only check if a default | |
6225 | initializer is available when the result is scalar. */ | |
6226 | init_exp = rsym->as ? NULL : gfc_default_initializer (&rsym->ts); | |
6227 | if (init_exp) | |
6228 | { | |
6229 | tmp = gfc_trans_structure_assign (result, init_exp, 0); | |
6230 | gfc_free_expr (init_exp); | |
6231 | gfc_add_expr_to_block (&init, tmp); | |
6232 | } | |
6233 | else if (rsym->ts.u.derived->attr.alloc_comp) | |
6234 | { | |
6235 | rank = rsym->as ? rsym->as->rank : 0; | |
6236 | tmp = gfc_nullify_alloc_comp (rsym->ts.u.derived, result, | |
6237 | rank); | |
6238 | gfc_prepend_expr_to_block (&body, tmp); | |
6239 | } | |
53169279 | 6240 | } |
5176859a | 6241 | } |
e50e62f5 | 6242 | |
1caa6ab1 | 6243 | if (result == NULL_TREE || artificial_result_decl) |
fa7b6574 | 6244 | { |
6245 | /* TODO: move to the appropriate place in resolve.c. */ | |
90a4a5a6 | 6246 | if (warn_return_type && sym == sym->result) |
4166acc7 | 6247 | gfc_warning (OPT_Wreturn_type, |
6248 | "Return value of function %qs at %L not set", | |
fa7b6574 | 6249 | sym->name, &sym->declared_at); |
90a4a5a6 | 6250 | if (warn_return_type) |
6251 | TREE_NO_WARNING(sym->backend_decl) = 1; | |
fa7b6574 | 6252 | } |
1caa6ab1 | 6253 | if (result != NULL_TREE) |
89ac8ba1 | 6254 | gfc_add_expr_to_block (&body, gfc_generate_return ()); |
4ee9c684 | 6255 | } |
89ac8ba1 | 6256 | |
6257 | gfc_init_block (&cleanup); | |
6258 | ||
6259 | /* Reset recursion-check variable. */ | |
6260 | if ((gfc_option.rtcheck & GFC_RTCHECK_RECURSION) | |
829d7a08 | 6261 | && !is_recursive && !flag_openmp && recurcheckvar != NULL_TREE) |
e50e62f5 | 6262 | { |
89ac8ba1 | 6263 | gfc_add_modify (&cleanup, recurcheckvar, boolean_false_node); |
6264 | recurcheckvar = NULL; | |
e50e62f5 | 6265 | } |
2294b616 | 6266 | |
d566c3e0 | 6267 | /* If IEEE modules are loaded, restore the floating-point state. */ |
6268 | if (ieee) | |
d7333535 | 6269 | gfc_restore_fp_state (&cleanup, fpstate); |
d566c3e0 | 6270 | |
89ac8ba1 | 6271 | /* Finish the function body and add init and cleanup code. */ |
6272 | tmp = gfc_finish_block (&body); | |
6273 | gfc_start_wrapped_block (&try_block, tmp); | |
6274 | /* Add code to create and cleanup arrays. */ | |
6275 | gfc_trans_deferred_vars (sym, &try_block); | |
6276 | gfc_add_init_cleanup (&try_block, gfc_finish_block (&init), | |
6277 | gfc_finish_block (&cleanup)); | |
4ee9c684 | 6278 | |
6279 | /* Add all the decls we created during processing. */ | |
267f3c67 | 6280 | decl = nreverse (saved_function_decls); |
4ee9c684 | 6281 | while (decl) |
6282 | { | |
6283 | tree next; | |
6284 | ||
1767a056 | 6285 | next = DECL_CHAIN (decl); |
6286 | DECL_CHAIN (decl) = NULL_TREE; | |
4c197fd0 | 6287 | pushdecl (decl); |
4ee9c684 | 6288 | decl = next; |
6289 | } | |
6290 | saved_function_decls = NULL_TREE; | |
6291 | ||
89ac8ba1 | 6292 | DECL_SAVED_TREE (fndecl) = gfc_finish_wrapped_block (&try_block); |
e5004242 | 6293 | decl = getdecls (); |
4ee9c684 | 6294 | |
6295 | /* Finish off this function and send it for code generation. */ | |
cde2be84 | 6296 | poplevel (1, 1); |
4ee9c684 | 6297 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; |
6298 | ||
e5004242 | 6299 | DECL_SAVED_TREE (fndecl) |
6300 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6301 | DECL_INITIAL (fndecl)); | |
6302 | ||
9579733e | 6303 | if (nonlocal_dummy_decls) |
6304 | { | |
6305 | BLOCK_VARS (DECL_INITIAL (fndecl)) | |
6306 | = chainon (BLOCK_VARS (DECL_INITIAL (fndecl)), nonlocal_dummy_decls); | |
431205b7 | 6307 | delete nonlocal_dummy_decl_pset; |
9579733e | 6308 | nonlocal_dummy_decls = NULL; |
6309 | nonlocal_dummy_decl_pset = NULL; | |
6310 | } | |
6311 | ||
4ee9c684 | 6312 | /* Output the GENERIC tree. */ |
6313 | dump_function (TDI_original, fndecl); | |
6314 | ||
6315 | /* Store the end of the function, so that we get good line number | |
6316 | info for the epilogue. */ | |
6317 | cfun->function_end_locus = input_location; | |
6318 | ||
6319 | /* We're leaving the context of this function, so zap cfun. | |
6320 | It's still in DECL_STRUCT_FUNCTION, and we'll restore it in | |
6321 | tree_rest_of_compilation. */ | |
87d4aa85 | 6322 | set_cfun (NULL); |
4ee9c684 | 6323 | |
6324 | if (old_context) | |
6325 | { | |
6326 | pop_function_context (); | |
6327 | saved_function_decls = saved_parent_function_decls; | |
6328 | } | |
6329 | current_function_decl = old_context; | |
6330 | ||
1f7747bd | 6331 | if (decl_function_context (fndecl)) |
6332 | { | |
6333 | /* Register this function with cgraph just far enough to get it | |
6334 | added to our parent's nested function list. | |
6335 | If there are static coarrays in this function, the nested _caf_init | |
6336 | function has already called cgraph_create_node, which also created | |
6337 | the cgraph node for this function. */ | |
4fe73152 | 6338 | if (!has_coarray_vars || flag_coarray != GFC_FCOARRAY_LIB) |
415d1b9a | 6339 | (void) cgraph_node::create (fndecl); |
1f7747bd | 6340 | } |
4ee9c684 | 6341 | else |
35ee1c66 | 6342 | cgraph_node::finalize_function (fndecl, true); |
df4d540f | 6343 | |
6344 | gfc_trans_use_stmts (ns); | |
2eb674c9 | 6345 | gfc_traverse_ns (ns, gfc_emit_parameter_debug_info); |
7257a5d2 | 6346 | |
6347 | if (sym->attr.is_main_program) | |
6348 | create_main_function (fndecl); | |
89ac8ba1 | 6349 | |
6350 | current_procedure_symbol = previous_procedure_symbol; | |
4ee9c684 | 6351 | } |
6352 | ||
7257a5d2 | 6353 | |
4ee9c684 | 6354 | void |
6355 | gfc_generate_constructors (void) | |
6356 | { | |
22d678e8 | 6357 | gcc_assert (gfc_static_ctors == NULL_TREE); |
4ee9c684 | 6358 | #if 0 |
6359 | tree fnname; | |
6360 | tree type; | |
6361 | tree fndecl; | |
6362 | tree decl; | |
6363 | tree tmp; | |
6364 | ||
6365 | if (gfc_static_ctors == NULL_TREE) | |
6366 | return; | |
6367 | ||
db85cc4f | 6368 | fnname = get_file_function_name ("I"); |
e1036019 | 6369 | type = build_function_type_list (void_type_node, NULL_TREE); |
4ee9c684 | 6370 | |
e60a6f7b | 6371 | fndecl = build_decl (input_location, |
6372 | FUNCTION_DECL, fnname, type); | |
4ee9c684 | 6373 | TREE_PUBLIC (fndecl) = 1; |
6374 | ||
e60a6f7b | 6375 | decl = build_decl (input_location, |
6376 | RESULT_DECL, NULL_TREE, void_type_node); | |
540edea7 | 6377 | DECL_ARTIFICIAL (decl) = 1; |
6378 | DECL_IGNORED_P (decl) = 1; | |
4ee9c684 | 6379 | DECL_CONTEXT (decl) = fndecl; |
6380 | DECL_RESULT (fndecl) = decl; | |
6381 | ||
6382 | pushdecl (fndecl); | |
6383 | ||
6384 | current_function_decl = fndecl; | |
6385 | ||
b2c4af5e | 6386 | rest_of_decl_compilation (fndecl, 1, 0); |
4ee9c684 | 6387 | |
b2c4af5e | 6388 | make_decl_rtl (fndecl); |
4ee9c684 | 6389 | |
00cf115c | 6390 | allocate_struct_function (fndecl, false); |
4ee9c684 | 6391 | |
cde2be84 | 6392 | pushlevel (); |
4ee9c684 | 6393 | |
6394 | for (; gfc_static_ctors; gfc_static_ctors = TREE_CHAIN (gfc_static_ctors)) | |
6395 | { | |
389dd41b | 6396 | tmp = build_call_expr_loc (input_location, |
6397 | TREE_VALUE (gfc_static_ctors), 0); | |
e60a6f7b | 6398 | DECL_SAVED_TREE (fndecl) = build_stmt (input_location, EXPR_STMT, tmp); |
4ee9c684 | 6399 | } |
6400 | ||
e5004242 | 6401 | decl = getdecls (); |
cde2be84 | 6402 | poplevel (1, 1); |
4ee9c684 | 6403 | |
6404 | BLOCK_SUPERCONTEXT (DECL_INITIAL (fndecl)) = fndecl; | |
e5004242 | 6405 | DECL_SAVED_TREE (fndecl) |
6406 | = build3_v (BIND_EXPR, decl, DECL_SAVED_TREE (fndecl), | |
6407 | DECL_INITIAL (fndecl)); | |
4ee9c684 | 6408 | |
6409 | free_after_parsing (cfun); | |
6410 | free_after_compilation (cfun); | |
6411 | ||
6148a911 | 6412 | tree_rest_of_compilation (fndecl); |
4ee9c684 | 6413 | |
6414 | current_function_decl = NULL_TREE; | |
6415 | #endif | |
6416 | } | |
6417 | ||
9ec7c303 | 6418 | /* Translates a BLOCK DATA program unit. This means emitting the |
6419 | commons contained therein plus their initializations. We also emit | |
6420 | a globally visible symbol to make sure that each BLOCK DATA program | |
6421 | unit remains unique. */ | |
6422 | ||
6423 | void | |
6424 | gfc_generate_block_data (gfc_namespace * ns) | |
6425 | { | |
6426 | tree decl; | |
6427 | tree id; | |
6428 | ||
b31f705b | 6429 | /* Tell the backend the source location of the block data. */ |
6430 | if (ns->proc_name) | |
6431 | gfc_set_backend_locus (&ns->proc_name->declared_at); | |
6432 | else | |
6433 | gfc_set_backend_locus (&gfc_current_locus); | |
6434 | ||
6435 | /* Process the DATA statements. */ | |
9ec7c303 | 6436 | gfc_trans_common (ns); |
6437 | ||
b31f705b | 6438 | /* Create a global symbol with the mane of the block data. This is to |
6439 | generate linker errors if the same name is used twice. It is never | |
6440 | really used. */ | |
9ec7c303 | 6441 | if (ns->proc_name) |
6442 | id = gfc_sym_mangled_function_id (ns->proc_name); | |
6443 | else | |
6444 | id = get_identifier ("__BLOCK_DATA__"); | |
6445 | ||
e60a6f7b | 6446 | decl = build_decl (input_location, |
6447 | VAR_DECL, id, gfc_array_index_type); | |
9ec7c303 | 6448 | TREE_PUBLIC (decl) = 1; |
6449 | TREE_STATIC (decl) = 1; | |
df4d540f | 6450 | DECL_IGNORED_P (decl) = 1; |
9ec7c303 | 6451 | |
6452 | pushdecl (decl); | |
6453 | rest_of_decl_compilation (decl, 1, 0); | |
6454 | } | |
6455 | ||
b549d2a5 | 6456 | |
6a7084d7 | 6457 | /* Process the local variables of a BLOCK construct. */ |
6458 | ||
6459 | void | |
3c82e013 | 6460 | gfc_process_block_locals (gfc_namespace* ns) |
6a7084d7 | 6461 | { |
6462 | tree decl; | |
6463 | ||
6464 | gcc_assert (saved_local_decls == NULL_TREE); | |
a961ca30 | 6465 | has_coarray_vars = false; |
6466 | ||
6a7084d7 | 6467 | generate_local_vars (ns); |
6468 | ||
4fe73152 | 6469 | if (flag_coarray == GFC_FCOARRAY_LIB && has_coarray_vars) |
a961ca30 | 6470 | generate_coarray_init (ns); |
6471 | ||
267f3c67 | 6472 | decl = nreverse (saved_local_decls); |
6a7084d7 | 6473 | while (decl) |
6474 | { | |
6475 | tree next; | |
6476 | ||
1767a056 | 6477 | next = DECL_CHAIN (decl); |
6478 | DECL_CHAIN (decl) = NULL_TREE; | |
6a7084d7 | 6479 | pushdecl (decl); |
6480 | decl = next; | |
6481 | } | |
6482 | saved_local_decls = NULL_TREE; | |
6483 | } | |
6484 | ||
6485 | ||
4ee9c684 | 6486 | #include "gt-fortran-trans-decl.h" |